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| 1 | Effect of Y_2O_3 stabilized ZrO_2 coating with tri-model structure on bi-layered thermally grown oxide evolution in nano thermal barrier coating systems at elevated temperatures显示文摘Bi-layered thermally grown oxide(TGO) layer plays a major role in the spallation of Y2 O3 stabilized ZrO2(YSZ) layer form the bond coat in the thermal barrier coating(TBC) systems during oxidation. On the other hand, bi-layered TGO formation and growth in the TBC systems with nanostructured YSZ have not been deeply investigated during cyclic oxidation. Hence, Inconel 738/NiCrAlY/normal YSZ and Inconel 738/NiCrAlY/nano YSZ systems were pre-oxidized at 1000 °C and then subjected to cyclic oxidation at 1150 °C. According to microstructural observations, nanostructured YSZ layer over the bond coat should have less micro-cracks and pinholes, due to the compactness of the nanostructure and the presence of nano zones that resulted in lower O infiltration into the nanothermal barrier coating system, formation of thinner and nearly continuous mono-layered thermally grown oxide on the bond coat during pre-oxidation, lower spinels formation at the Al2 O3 /YSZ interface and finally, reduction of bi-layered thermally grown oxide thickness during cyclic oxidation. It was found that pre-heat treatment and particularly coating microstructure could influence microstructural evolution(bi-layered TGO thickness) and durability of thermal barrier coating systems during cyclic oxidation. | Mohammadreza Daroonparvar Muhamad Azizi Mat Yajid Noordin Mohd Yusof Hamid Reza Bakhsheshi-Rad Z.Valefi Esah Hamzah | 2014 | Journal of Rare Earths2014,32,1: | 10 |
| 2 | 乳胶手套中总的可溶性蛋白质的测定——RRIM和ASTM测定法的对比显示文摘1摘要采用两种常用的测定法,即马来西亚橡胶研究所(RRIM)和美国材料试验学会(ASTM)各自修订的Lowry测定法[简称RRIM法(MS 1392:96P)和ASTM法(D5712-95)],测定了乳胶手套中总的可溶性蛋白质(EP),并研究了它们的相关性. | ESAH YIP 李普旺 | 2001 | 热带农业工程2001,26,2: | 10 |
| 3 | Investigation of three steps of hot corrosion process in Y_2O_3 stabilized ZrO_2 coatings including nano zones显示文摘Phase transformation of tetragonal ZrO2 to monoclinic phase and also increment of bond coat oxidation kinetic(TGO thickening) can substantially restrict the life time of thermal barrier coating systems(TBCs). So, nanostructured and conventional Y2O3 stabilized ZrO2 coatings were evaluated in fused V2O5-Na2SO4 salts during thermal exposure in air. Microstructural characterization showed lower hot corrosion products(monoclinic zirconia, YVO4 crystals) formation and reduction of TGO thickness in thermal barrier coating system consisting of nanostructured Y2O3 stabilized ZrO2(YSZ) top coat. It was found that inhomogeneities, pores and micro-cracks played a principal role in the molten salts infiltration into the YSZ coating during three steps of hot corrosion process. In the nanostructured YSZ coating with tri-model structure, nano zones which surrounded by fully molten parts could fill the aforementioned defects and could act as barrier for the oxygen and corrosive molten salts penetration into the TBC. | Mohammadreza Daroonparvar Muhamad Azizi Mat Yajid Noordin Mohd Yusof Hamid Reza BakhsheshiRad Esah Hamzah Mohsen Nazoktabar | 2014 | Journal of Rare Earths2014,32,10: | 10 |
| 4 | 银对多孔Ti-30 at%Ta形状记忆合金的微观结构、力学性能、腐蚀行为和生物相容性的影响显示文摘本文采用粉末冶金技术和微波烧结工艺制备了xAg/Ti-Ta。采用光学和扫描电子显微镜(SEM)、X射线衍射仪(XRD)、压缩试验和形状记忆试验研究了xAg/Ti-30Ta(x=0,0.41 at%,0.82 at%和2.48 at%)形状记忆合金(SMAs)的热力学、力学和生物性能。结果表明,Ag的加入对颗粒的孔径和形状有显著影响,在Ag加入量为0.41 at%时,颗粒的最小孔径为11μm,相对密度为72%。断裂应力和应变随着Ag的增加而增加,Ag加入量为0.41 at%的合金断裂应力应变达到最大。0.82 at%Ag/Ti-Ta表现出更好的耐蚀性和生物相容性,具有与纯Ti和Ti6Al4V合金类似的性能,具备作为生物材料的应用前景。 | Mustafa Khaleel IBRAHIM Safaa Najah SAUD Esah HAMZAH Engku Mohamad NAZIM | 2020 | Journal of Central South University2020,27,11: | 3 |
| 5 | 自由锻Ti-Ni形状记忆合金的显微组织和超弹性(英文)显示文摘采用放电等离子烧结(SPS)法将元素钛粉和镍粉制备成Ti-51%Ni形状记忆合金(SMAs)。研究目的是采用自由锻二次加工以提高SPS合金的性能。对自由锻前后合金的显微组织、相变温度和超弹性进行比较。结果表明,自由锻可以显著提高Ti-Ni形状记忆合金的拉伸强度和形状记忆性能,自由锻后合金的韧性从6.8%提高到了9.2%,超弹性的应变范围从5%增加到7.5%,应变恢复速率从72%提高到92%。Ti-51%Ni合金显微组织中含有立方奥氏体相(B2)基体、单斜马氏体相(B19′)、第二相(Ti_3Ni_4,Ti_2Ni和TiNi_3)和氧化物相(Ti_4Ni_2O,Ti_3O_5)。自由锻后再经500°C时效处理的最终样品的马氏体相变温度向高温方向偏移,这是由于Ti_3Ni_4相(透射电镜下可以观察到)的析出而导致基体中Ni含量的减少。总之,自由锻可以提高Ti-51%Ni形状记忆合金的超弹性和力学性能。 | Abdollah BAHADOR Esah HAMZAH Katsuyoshi KONDOH Tuty ASMA ABUBAKAR Farazila YUSOF Junko UMEDA Safaa N.SAUD Mustafa K.IBRAHIM | 2018 | Transactions of Nonferrous Metals Society of China2018,28,3: | 2 |
| 6 | Refinement of Mg 2 Si reinforcement in a commercial Al–20%Mg 2 Si in-situ composite with bismuth, antimony and strontium显示文摘 | Nur Azmah Nordin Saeed Farahany Ali Ourdjini Tuty Asma Abu Bakar Esah Hamzah | 2013 | Materials Characterization2013,,: | 1 |
| 7 | Displaced fractures of the neck of the ra- dius in children 显示文摘 | Jones ER Esah M | 1971 | J Bone Joint Surg Br1971,53,3: | 1 |
| 8 | Ag^(+)改性沸石-聚氨酯涂料用于混凝土下水道微生物诱导混凝土腐蚀行为显示文摘微生物诱导混凝土腐蚀(MICC)是指硬化混凝土浆体中生物产生的硫酸与水化产物之间的化学反应,它将导致早期强度降低、劣化,甚至结构破坏。本文探讨了表面涂覆改性沸石聚氨酯胶凝材料的杀菌性能。研究了银改性沸石-聚氨酯涂层在硫氧杆菌接种的环境中8周的抗菌性能。通过分析pH值、光密度(OD)、硫酸盐产量和细菌数量来评估沸石-聚氨酯涂层在硫氧杆菌接种产生硫酸环境中的抗菌性能。对缺乏细菌附着和样品表面变形的微菌落、pH降低滞后、OD值增加和硫酸盐产量进行分析,结果表明,与未改性的聚氨酯涂层相比,加入银改性沸石的样品(不论沸石类型)均表现出抗菌性能。银改性沸石的抑菌性能是由于在水溶液中释放的银离子抑制了细菌的细胞功能,导致细胞损伤从而起到抑菌作用。 | Asma KAMARUL ASRI Safaa N.SAUD Esah HAMZAH Zaharah IBRAHIM | 2022 | Journal of Central South University2022,29,9: | 1 |
| 9 | Thermal studies of C-6 substituted oellulose and its subsequent phosphorylated products in air显示文摘 | Jain Raj Esah K Lac Krishan Bhatngar Hart L | 1986 | Thermachimica Acta1986,97,: | 1 |
| 10 | Allergic Response and Levers of Extractable Proteins in NR Latex Glove and Dry Rubber Products显示文摘 | Esah Yip etc | 1994 | Journal of Natural Rubber Research1994,9,2: | 1 |
| 11 | The Copper-rich Alloys of the Copper-nickel-tin System显示文摘 | Esah J T Byonne N J Upthegrowe | 1993 | Trans ALME1993,104,: | 1 |
| 12 | Elevated maternal second‐trimester serum alpha‐fetoprotein as a risk factor for placental abruption显示文摘 | MinnaTikkanen EsaH?m?l?inen MikaNuutila JormaPaavonen OlaviYlikorkala VilhoHiilesmaa | 2007 | Prenat Diagn2007,,3: | 1 |