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    题名 作者 年代 出处 被引量
1缺血性糖尿病下肢病变的膝下动脉成形术显示文摘目的探讨膝下动脉的球囊成形术在治疗糖尿病缺血性下肢病变中的价值。方法对53例糖尿病合并缺血性下肢病变患者64侧缺血性下肢进行膝下动脉Deep球囊扩张成形术。对比患者手术前后临床症状的改变及足部溃疡的变化。结果53例患者共119支动脉分支接受PTA治疗,50例患者的101个分支成功地开通,技术成功率为84.9%,所有50例患者的临床症状均明显缓解,足部溃疡均变小,无需截肢。结论膝下动脉的球囊成形术是治疗缺血性糖尿病下肢病变安全有效的微创手段。纪东华 王峰 Dierk Scheinert 李城 Andrej Schmidt 2008介入放射学杂志2008,17,5:24
2Advances in Mg corrosion and research suggestions显示文摘Recent research is summarised with an emphasis on the use of Mg alloys for biodegradable medical applications.Mg melt purification using Zr has been shown to provide the opportunity to produce ultra-high-purity Mg alloys,which could lead to stainless Mg.Nor's solution may be a good starting model for the study of Mg for biodegradable medical implant applications.A systematic laboratory investigation is needed to elucidate the details of how the corrosion behaviour is controlled by the various constituents of the body fluids.In the evaluation of the Mg corrosion mechanism there is a critical lack of understanding of(i)the amount of hydrogen dissolved in the Mg metal during corrosion,and during anodic polarisation,and(ii)the size film-free area where corrosion occurs,and how to measure this area.In the evaluation of the apparent valence of Mg using an applied anodic current density,for reliable values,it is important to apply a sufficiently large applied current density.The available data are consistent with the slightly modified uni-positive Mg^(+)ion mechanism,which maintains that(i)the surface of Mg is covered by a partially protective film,and the film-free area increases as the potential becomes more positive(i.e.a catalytic activation process),(ii)corrosion occurs preferentially at breaks in the partial protective film,(iii)corrosion at the breaks in the partially protective film involves the uni-positive Mg ion,(iv)undermining of particles occurs when Mg is severely dissolved,and(v)there may be some self-corrosion not covered by these four processes,which may be associated with crevice-like features on a severely corroded surface or hydride dissolution at relatively negative potentials.Self-corrosion might also be possible under condition of essentially uniform corrosion.Mg^(+)has not been experimentally observed.Its existence is postulated as an extremely-short lifetime intermediate in the reaction sequence between metallic Mg and the equilibrium ion Mg^(++).There has been no direct experimental examination of this sequence,and a key challenge remains to devise an experimental approach to study the details of this reaction sequence and the intermediate steps.The apparent valence of Mg continues to be a critical question.If defendable values of effective valence for Mg less than 1.0 were measured,this would indicate that some phenomena contribute to these low values that are not currently accounted for in the uni-positive Mg^(+)corrosion mechanism.The most likely candidate would be self-corrosion.Andrej Atrens Guang-Ling Song Fuyong Cao Zhiming Shi Patrick K.Bowen 2013Journal of Magnesium and Alloys2013,1,3:19
3Superhydrophobic coatings for corrosion protection of magnesium alloys显示文摘Magnesium(Mg)alloys show great potential to be extensively applied in practice owing to their superior properties,while the poor corrosion resistance does undoubtedly restrict their applications.Superhydrophobic coatings with good repellency to corrosive solutions can significantly decrease the interaction between the corrosive species and the substrate,so that they are receiving a lot of attention to improve the corrosion resistance of Mg alloys.Various strategies have been introduced to develop a superhydrophobic coating on Mg alloys,which were reviewed to elucidate the current research status to provide a clue or thinking for beginning researchers.Further,the existing issues of superhydrophobic coating were discussed,especially for their real applications in practice,mainly owing to their poor mechanical stability.Based on the existing issues,the future study was discussed to improve the stability of hierarchical structures and entrapped air pockets,impart the superhydrophobic coating self-healing property to repair the damaged area during service,provide double protection by incorporation of corrosion inhibitors,or even introduce slippery liquid-infused porous surfaces with lubricant layer to provide better corrosion protection for Mg alloys.Wenhui Yao Liang Wu Guangsheng Huang Bin Jiang Andrej Atrens Fusheng Pan 2020Journal of Materials Science & Technology2020,52,17:15
4A review on hot tearing of magnesium alloys显示文摘Hot tearing is often a major casting defect in magnesium alloys and has a significant impact on the quality of their casting products.Hot tearing of magnesium alloys is a complex solidification phenomenon which is still not fully understood,it is of great importance to investigate the hot tearing behaviour of magnesium alloys.This review attempts to summarize the investigations on hot tearing of magnesium alloys over the past decades.The hot tearing criteria including recently developed Kou’s criterion are summarized and compared.The numeric simulation and assessing methods of hot tearing,factors influencing hot tearing,and hot tearing susceptibility(HTS)of magnesium alloys are discussed.Jiangfeng Song Fusheng Pan Bin Jiang Andrej Atrens Ming-Xing Zhang Yun Lu 2016Journal of Magnesium and Alloys2016,4,3:12
5微量Ag对形变Cu-Fe原位复合材料组织和性能的影响显示文摘采用熔铸-中间热处理-形变工艺制备了Cu-14Fe及Cu-14Fe-0.06Ag原位复合材料,利用光学显微镜、扫描电镜、数字微欧计及液晶电子拉力试验机研究了微量Ag对Cu-14Fe合金微观组织、力学性能及导电性能的影响。结果表明,微量Ag的加入使Cu-14Fe合金枝晶组织更发达且枝晶臂直径更小,相同形变量下形成的纤维更加细小均匀,材料的强度显著提高,电导率也有所上升,伸长率略有提高,冷加工性能明显改善。刘克明 周海涛 陆德平 Andrej Atrens 邹晋 陈志宝 谢仕芳 2010材料热处理学报2010,31,6:8
6Influence of trace As content on the microstructure and corrosion behavior of the AZ91 alloy in different metallurgical conditions显示文摘The influence of trace As content(0.04,0.05,0.06 wt%)on the microstructure and corrosion behavior of AZ91 alloy in different metallurgical conditions(as-cast,as-quenched,peak-aged)was firstly investigated.It is found that the corrosion resistance of AZ91 alloy in all conditions is significantly enhanced by As addition,mainly due to cathodic toxication,melt purification and incidence reduction of local corrosion.As alloying leads to the formation of Mg 3 As 2 and makes the β-Mg 17 Al 12 phase less continuous in the as-cast alloys.The alloy containing 0.06 wt%As obtains a higher corrosion rate than those of the alloy containing 0.05 wt%As owing to a more discontinuity of β phase.The β phase is dissolved into the matrix in the as-quenched alloys and reprecipitates along the grain boundaries after aging.The more continuous β phase distribution in the peak-aged alloys contributes to corrosion resistance.The corrosion rates are in the order of as-quenched>as-cast>peak-aged.The lowest corrosion rate(0.67 mm/y)in 3.5 wt%NaCl solution is obtained in the peak-aged AZ91-0.05As alloy,which is over 70%lower than that of as-cast AZ91 alloy(2.22 mm/y).Zhe Zhang Guohua Wu Andrej Atrens Wenjiang Ding 2020Journal of Magnesium and Alloys2020,8,1:8
7Expression of cyclooxygenase-2 is associated with p53 accumulation in premalignant and malignant gallbladder lesions显示文摘瞄准:在胆囊癌和它的先锋损害在表示和 p53 累积上检验在 cyclooxygenase-2 (COX-2 ) 之间的关系。方法:包括正常胆量 blader 上皮,发育异常(11 低档 dyplasia 和 16 高级发育异常) 的 27 个盒子和 27 腺癌的 14 个盒子的 68 件胆囊织物样品被免疫组织化学为 COX-2 表示和 p53 累积评估。在 COX-2 表示, p53 累积和 clinicopathological 特征之中的关系被分析。结果:COX-2 被表示在 14.3% 正常胆囊上皮, 70.3% 发育异常的 epite hlium,和 59.2% 腺癌。当划分了成低档和高级发育异常时, COX-2 在 5 是积极的(45.4%) 低档的盒子并且 14 (87.5%) 高级发育异常(P = 0.019 ) 。p53 的累积在 5 被检测(31.2%) 癌的高级发育异常并且在 13 的盒子(48.1%) 。没有 p53 累积在正常上皮或低档发育异常被发现。在表示上的 COX-2 在 18 中的 17 个被观察(94.4%) 有从没有 p53 累积的 50 个盒子的与 20 比较的 p53 累积(40.0%) 的盒子(P < 0.001 ) 。结论:在在正常上皮,低档发育异常和高级发育异常之中的 COX-2 表示的有效差量建议在 COX-2 的表示上,酶是在胆囊 carcinogenensis 的一个早事件。自从有 COX-2 表示的 p53 相互关联的累积,而且,在表示上的 COX-2 在高级发育异常和癌可能是的胆囊观察了部分由于 p53 的机能障碍。Mateja Legan Bo(s|ˇ)tjan Luzar Vera Ferlan Marolt Andrej C(o|¨)r 2006World Journal of Gastroenterology2006,12,21:7
8Review of the atmospheric corrosion of magnesium alloys显示文摘Mg atmospheric corrosion is induced by a thin surface aqueous layer. Controlling factors are microgalvanic acceleration between different phases, protection by a continuous second phase distribution, protection by corrosion products, and degradation of protective layers by aggressive species such as chloride ions. The Mg atmospheric corrosion rate increases with relative humidity (RH) and concentrations of aggressive species. Temperature increases the corrosion rate unless a protective film causes a decrease.O2, SO2 and NO2 accelerate the atmospheric corrosion rate, whereas the corrosion rate is decreased by CO2. The traditional gravimetric method can evaluate effectively the corrosion behavior of Mg alloys.Hongguang Liu Fuyong Cao Guang-Ling Song Dajiang Zheng Zhiming Shi Mathew S.Dargusch Andrej Atrens 2019Journal of Materials Science & Technology2019,35,9:7
9Doublely-doped Mg-Al-Ce-V_(2)O_(7)^(4-)LDH composite film on magnesium alloy AZ31 for anticorrosion显示文摘A doublely-doped layered double hydroxide(LDH)film was produced on an anodized magnesium alloy AZ31.The Ce-doped Mg-Al LDH film was prepared by in-situ hydrothermal treatment method,and the intercalation of vanadate was realized by ion-exchange reaction.The structure,morphology and composition of as-prepared LDH film were investigated by X-ray diffractometer,field-emission scanning electronic microscope and energy dispersive spectrometry.Results indicated that a uniform and compact LDH film was formed and the intercalation of Ce^(3+)and vanadate would change the crystal structure of LDHs.The results of the potentiodynamic polarization,electrochemical impedance spectra,hydrogen evolution and corrosion weight loss tests showed the Ce^(3+)and vanadate anions significantly improve the impedance of LDH film,and the active double-doped LDH film could effectively protect the magnesium substrate from corrosion.Liang Wu Xingxing Ding Zhicheng Zheng Aitao Tang Gen Zhang Andrej Atrens Fusheng Pan 2021Journal of Materials Science & Technology2021,,5:7
10Effects of deformation processes on morphology,microstructure and corrosion resistance of LDHs films on magnesium alloy AZ31显示文摘Highly oriented Mg-Al layered double hydroxide(LDHs)films were deposited on magnesium alloy AZ31 with different deformation processes by an easy in-situ growth method.The characteristics of the films were investigated by optical microscopy(OM),X-ray diffraction(XRD),scanning electron microscopy(SEM),and electrochemical,immersion and hydrogen evolution tests.The corrosion protection performance ranked the LDHs films as the increasing series:CS-LDHs(as-cast sample with LDHs)Jing Chen Liang Wu Xingxing Ding Qiang Liu Xu Dai Jiangfeng Song Bin Jiang Andrej Atrens Fusheng Pan 2021Journal of Materials Science & Technology2021,,5:6
11Strain hardening behavior of Mg-Y alloys after extrusion process显示文摘The strain hardening is an effective mode of enhancing mechanical properties in alloys.In this work,the strain hardening behaviors of Mg-xY(x=1,2,and 3 wt%)after extrusion process was investigated using uniaxial tensile tests.Results suggest that the Mg-xY alloys are composed ofα-Mg with a little amount of Mg24Y5 phase.The average grain size reduces from 19.8μm to 12.2μm as the Y content adds from 1 wt%to 2 wt%.Nevertheless,when Y content reaches 3 wt%,the grain size reaches to 12.9μm,which is close to that of Mg-2Y.The strain hardening rate decreases from 883 MPa to 798 MPa at(σ-σ0.2)=40 MPa,and Mg-2Y and Mg-3Y have the similar strain hardening response.Moreover,Mg-1Y shows an obvious ascending stage after the steep decreasing stage,which is mainly caused by the activation of twinning.The strain hardening behavior of Mg-xY is explained based on understanding the roles of the deformation mechanisms via deformation microstructure analysis and Visco-Plastic Self Consistent(VPSC)model.The variation of strain hardening characteristics with increasing Y content is related to the effects of grain size and texture.Chaoyue Zhao Ziyan Li Jiahui Shi Xianhua Chen Teng Tu Zhu Luo Renju Cheng Andrej Atrens Fusheng Pan 2019Journal of Magnesium and Alloys2019,7,4:6
12Effect of grain refinement and crystallographic texture produced by friction stir processing on the biodegradation behavior of a Mg-Nd-Zn alloy显示文摘The application of a single pass of friction stir processing(FSP) to Mg-Nd-Zn alloy resulted in grain refinement, texture evolution and redistribution of second phases, which improved corrosion resistance.In this work, an as-rolled Mg-Nd-Zn alloy was subjected to FSP. The microstructure in the processed zone of the FS-400 rpm alloy exhibited refined grains, a more homogenous grain size distribution, less second phases, and stronger basal plane texture. The corrosion behavior assessed using immersion tests and electrochemical tests in Hank’s solution indicated that the FS-400 rpm alloy had a lower corrosion rate, which was attributed to the increase of basal plane intensity and grain refinement. The hardness was lowered slightly and the elongation was increased, which might be attributed to the redistribution of the crushed second phases.Wen Zhang Lili Tan Dingrui Ni Junxiu Chen Ying-Chao Zhao Long Liu Cijun Shuai Ke Yang Andrej Atrens Ming-Chun Zhao 2019Journal of Materials Science & Technology2019,35,5:6
13Use of intravascular imaging in managing coronary artery disease显示文摘For many years,coronary angiography has been considered 'the gold standard' for evaluating patients with coronary artery disease. However,angiography only provides a planar two-dimensional silhouette of the lumen and is unsuitable for the precise assessment of atherosclerosis. With the introduction of intravascular imaging,direct visualization of the arterial wall is now feasible. Intravascular imaging modalities extend diagnostic information,thereby enabling more precise evaluation of plaque burden and vessel remodeling. Of all technologies,intravascular ultrasound(IVUS) is the most mature and widely used intravascular imaging technique. Optical coherence tomography(OCT) is an evolving technology that has the highest spatial resolution of existing imaging methods,and it is becoming increasingly widespread. These methods are useful tools for planning interventional strategies and optimizing stent deployment,particularly when stenting complex lesions. We strongly support the mandatory use of IVUS for left main percutaneous coronary intervention(PCI). In addition,it can be used to evaluate vascularresponses,including neointimal growth and strut apposition,during follow-ups. Adequately powered randomized trials are needed to support IVUS or OCT use in routine clinical practice and to answer whether OCT is superior to IVUS in reducing adverse events when used to guide PCI. The current perception and adoption of innovative interventional devices,such as bioabsorbable scaffolds,will increase the need for intravascular imaging in the future.Sanda Jegere Inga Narbute Andrejs Erglis 2014World Journal of Cardiology2014,6,6:6
14Microstructure modification and corrosion resistance enhancement of die-cast Mg-Al-Re alloy by Sr alloying显示文摘The effects of Sr additions on the microstructure and corrosion performance of a Mg-Al-RE alloy in 3.5 wt.%Na Cl saturated with Mg(OH)_(2) have been investigated.Microstructure examination reveals that the Sr addition introduces additional intermetallic phases,refines intermetallic networks and dendritic grains,and improves the network continuity.More Al and rare earth elements can be identified in the intermetallics and grain boundaries or inter-dendrite regions under a transmission electron microscope and secondary electron microscope,respectively.On the Sr-containing intermetallic phases and the refined microstructure,the oxide films become more protective,resulting in more corrosion resistant boundary areas and thus dendrite grain grooves.Hence,the presence of large amounts of intermetallics and boundaries can enhance the corrosion performance of the Mg-Al-RE alloy containing Sr.Matthew S.Dargusch Zhiming Shi Hanliang Zhu Andrej Atrens Guang-Ling Song 2021Journal of Magnesium and Alloys2021,9,3:5
15从“漏斗”到“天坑”看岩溶学术语的演变(英文)显示文摘岩溶学是一门发展变化的科学,岩溶学术语也与时俱进。以术语'漏斗(doline)'为例,它来源于斯洛文尼亚喀斯特地区的方言,在斯洛文尼亚语中,它(dolina,单数)的意思是谷地,主要指河谷。因此,在19世纪以前的斯洛文尼亚语的科学文献中,就是指谷地。随着19世纪上半叶岩溶学的发展,喀斯特高原的漏斗状地形逐渐引起研究者们的注意,德语系的奥地利地质学家们将这种地形定义为'漏斗(dolines,复数)',相当于德语的Trichter(漏斗),并声明是当地人的说法。因此,在19世纪下半叶奥地利地质学家的出版物中,普遍使用这一概念。如在Cvijic′的DasKarstp¨hanomen(岩溶现象)一书中,其漏斗(dolines)的概念可谓无所不包,除岩溶干谷和坡立谷以外,所有洼地都称为漏斗,不仅包括溶蚀漏斗和塌陷漏斗,也包括竖井、落水洞、天窗,甚至某些岩溶泉和洞穴洞口。同斯洛文尼亚语相似,在塞尔维亚语中,doline也是指一般谷地。因此,Cvijic′在塞尔维亚语文献中不再使用dolina表示漏斗状地形,而是用vrtacˇa,这是因为vrtacˇa和我们今天使用的doline的内涵非常相近,而且在法语、德语、意大利语、英语、克罗地亚语均有相似的词汇。在20世纪中期以前,斯洛文尼亚的地理学家们为了避免使用dolina引起歧义,对于漏斗状的地形均用vrtaˇca表达。在19世纪下半叶,漏斗(dolines)的成因有两派理论,一种持塌陷成因,一种持侵蚀成因,后者包括侵蚀和溶蚀两种作用。前者以Schmidl为代表,后者支持者是Cox,Diener和Mojsisovics。根据漏斗的形态,Cvijic′将其分为三种,即碗状漏斗、漏斗状漏斗和井状漏斗。随着对漏斗状地形的深入研究,V.Panoˇs's根据漏斗的不同发育阶段、漏斗的成因、漏斗的覆盖类型、漏斗形成的气候因素、漏斗的沉积类型以及漏斗的形态,将漏斗分为30种。根据最新的岩溶百科全书,按照英语的命名原则,漏斗(dolines/sink-holes)有15种:冲积漏斗、埋藏漏斗、塌陷漏斗、覆盖沉降漏斗、充填漏斗、层间塌陷漏斗、古岩溶漏斗、破裂漏斗、落水洞、溶蚀漏斗、溶蚀沉降漏斗、深部塌陷漏斗、沉降漏斗和潜蚀漏斗。此外,在某种程度上,与漏斗有关的形态还有蓝湖(blue-holes)、陷井(cenotes,)和特涝(turloughs)。值得一提的是,随着中国地球科学的发展,中国与西方岩溶学家交流的深入、中国岩溶研究的深入,在表述中国岩溶地貌以及更大范围热带和亚热带岩溶地貌时,汉语词汇如石林、峰丛和峰林也被引入到岩溶学术语中;而且随着中国岩溶地区可进入性的增强,新的岩溶地貌也随之被发现,如上个世纪末,在中国南方发现了许多大型的塌陷漏斗,有的直径和深度均超过500m,朱学稳依据这些漏斗的形态、成因和演化过程,将它们命名为天坑。未来,我们也许还会找出其它词汇用来形容塌陷漏斗或者用某个新词来形容极其特殊的塌陷漏斗。KRANJC Andrej 2009中国岩溶2009,28,2:5
16Effects of Fe concentration on microstructure and corrosion of Mg-6Al-1Zn-xFe alloys for fracturing balls applications显示文摘Mg-6A1-1 Zn-xFe (x = 0,1,3,5 and 7 wt%) alloys were prepared by powder metallurgy and followed by hot extrusion. Majority of Fe element exists as insoluble particles in the alloys. The as-extruded alloys showed higher degradable rates but less stable mechanical properties than as-annealed alloys. Corrosion rate of all the alloys increased with increasing Fe concentration, reaching 2.4 mL cm^-2 h^-1.0.2% yield strength of all the alloys was higher than 150 MPa. In short, Mg-6A1-1 Zn-xFe alloys have an attractive combination of corrosion and mechanical properties, which holds a bright future for fracturing balls applications.Cheng Zhang Liang Wu Guangsheng Huang Lin Chen Dabiao Xia Bin Jiang Andrej Atrens Fusheng Pan 2019Journal of Materials Science & Technology2019,35,9:5
17Influence of high pressure during solidification on the microstructure and strength of Mg-Zn-Y alloys显示文摘The effect of high pressure during solidification on the microstructure and mechanical property of Mg-6Zn-1Y and Mg-6Zn-3Y was investigated using optical microscopy, scanning electronic microscopy, X-ray diffraction(XRD) and Vickers-hardness testing. Under atmospheric-pressure solidification, Mg-6Zn-1Y consisted of α-Mg, Mg7Zn3 and Mg_3YZn_6; whilst Mg-6Zn-3Y consisted of α-Mg, Mg_3Y_2Zn_3 and Mg_3YZn_6. Under 6 GPa high-pressure solidification, both alloy consisted of α-Mg, MgZ n and Mg12 YZn. The shape of the main second phase changed from a lamellar structure formed for atmospheric-pressure solidification to small particles formed for solidification at 6 GPa pressure. The dendrite microstructure was refined and was more regular, and the length of the primary dendrite arm increased under 6 GPa high-pressure solidification, which was attributed to increasing thermal undercooling, compositional undercooling and kinetics undercooling. After solidification at 6 GPa pressure, the solid solubility of Y in the second phase and the Vickers-hardness increased from 15 wt.% and 69 MPa for Mg-6Zn-1Y to 49 wt.% and 97 MPa; and from 19 wt.% and 71 MPa for Mg-6Zn-3Y alloy to 20 wt.% and 92 MPa, respectively.周海涛 刘克明 张莉 陆磊 ATRENS Andrej 陆德平 2016Journal of Rare Earths2016,34,4:5
18Review of Mg alloy corrosion rates显示文摘A review of the literature confirmed that the intrinsic corrosion rate of high-purity Mg as measured by weight-loss is 0.3mm/y in a concentrated chloride solution.Atmospheric corrosion of Mg alloys has produced corrosion rates of Mg-Al alloys an order of magnitude lower than the intrinsic corrosion rate of Mg in a concentrated chloride solution of 0.3 mm/y.The only successful strategy to produce a Mg alloy with a corrosion rate in a concentrated chloride solution substantially less than the intrinsic corrosion rate as measured by weight loss of Mg of 0.3 mm/y has been to improve the protectiveness of the corrosion product film.Andrej Atrens Zhiming Shi Syeda UMehreen Sean Johnston Guang-Ling Song Xianhua Chen Fusheng Pan 2020Journal of Magnesium and Alloys2020,8,4:5
19Resin infiltration of deproteinised natural occlusal subsurface lesions improves initial quality of fissure sealing显示文摘The aim of this ex vivo study was to evaluate the infiltration capability and rate of microleakage of a low-viscous resin infiltrant combined with a flowable composite resin(RI/CR) when used with deproteinised and etched occlusal subsurface lesions(International Caries Detection and Assessment System code 2). This combined treatment procedure was compared with the exclusive use of flowable composite resin(CR) for fissure sealing. Twenty premolars and 20 molars revealing non-cavitated occlusal carious lesions were randomly divided into two groups and were meticulously cleaned and deproteinised using Na OCl(2%). After etching with HCl(15%), 10 premolar and 10 molar lesions were infiltrated(Icon/DMG; rhodamine B isothiocyanate(RITC)-labelled) followed by fissure sealing(G-?nial Flo/GC; experimental group, RI/CR). In the control group(CR), the carious fissures were only sealed. Specimens were cut perpendicular to the occlusal surface and through the area of the highest demineralisation(DIAGNOdent pen, Ka Vo). Using confocal laser-scanning microscopy, the specimens were assessed with regard to the percentage of caries infiltration, marginal adaption and internal integrity. Within the CR group, the carious lesions were not infiltrated. Both premolar(57.9% ± 23.1%) and molar lesions(35.3% ± 22.1%) of the RI/CR group were uniformly infiltrated to a substantial extent, albeit with significant differences(P = 0.034). Moreover, microleakage(n = 1) and the occurrence of voids(n = 2) were reduced in the RI/CR group compared with the CR group(5 and 17 specimens,respectively). The RI/CR approach increases the initial quality of fissure sealing and is recommended for the clinical control of occlusal caries.Andrej M Kielbassa Ina Ulrich Rita Schmidl Christoph Schuller Wilhelm Frank Vanessa D Werth 2017International Journal of Oral Science2017,9,2:4
20NaOH浓度对铸造铝锂合金微弧氧化膜层显微组织和耐蚀性能的影响显示文摘采用含有Na2WO4和不同NaOH浓度的硅酸盐系列电解液,利用微弧氧化(MAO)技术在Al-Cu-Li合金表面制备陶瓷涂层,研究NaOH浓度在1-9 g/L范围内对涂层显微组织和腐蚀行为的影响。利用X射线衍射(XRD)、X射线光电子能谱(XPS)和扫描电子显微镜(SEM)对膜层的组成和微观结构进行表征。结果表明,NaOH促进MAO反应中氧化物的生成,使膜层厚度增加。电化学腐蚀测试(极化曲线、交流阻抗谱)和质量损失试验确定膜层的耐蚀性随NaOH加入量的增加而提高,且在7g/LNaOH溶液中制备的膜层耐蚀性最优。全浸泡腐蚀试验也给出一致的结果。秦莹 吴国华 Andrej ATRENS 张小龙 张亮 丁文江 2021Transactions of Nonferrous Metals Society of China2021,31,4:4
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