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| 1 | Effects of Sm_(2)O_(3) addition on sintering behavior of pre-synthesized magnesia-rich magnesium aluminate spinel显示文摘The effects of Sm_(2) O_(3) as an additive on the densification of a pre-synthesized magnesia-rich spinel were investigated.The sintering behavior of the material was characterized by analyzing its dilatometric characteristics,linear shrinkage,bulk density,apparent porosity,phase structure,and micro structure.Moreover,the cold modulus of rupture(CMOR) and microhardness of the spinel were measured.The results show that samarium oxide reacts with the spinel to form SmAlO_(3)(a rare-earth aluminate) to improve the sintering performance and mechanical properties of the spinel. The formation of magnesite phases decreases the rupture strength of the spinel.However,this MgO phase is inlaid in spinel grains boundary,has a pinning effect which can improve the sinterability of the spinel. | Zhenghuang Quan Zhoufu Wang Xitang Wang Hao Liu Yan Ma | 2021 | Journal of Rare Earths2021，39，11： | 3 |
| 2 | Structure and Properties of CaO-MgO-SiO_2 Inorganic Glass Fiber with Additives (Al_2O_3,Y_2O_3)显示文摘Structure, crystallization and dissolution properties of CaO-MgO-SiO2 inorganic glass fiber in the presence of additives (Al2O3, Y2O3) were investigated by DTA, XRD, FTIR and ICP-AES techniques. The results show that with the addition of Al2O3 and Y2O3, the glass network structure is strengthened and the precipitation of crystals is inhibited for heat-treated fibers. Compared with Y2O3 doped fibers, Al2O3 presents more significant effects on the enhancement of silica network and the inhibition of crystallization in fibers. As for dissolution properties in physiological fluids, though the weight losses, changes of pH values and leached ions concentration lower slightly with the addition of Al2O3 and Y2O3 for the intensified network structure, and fibers still present high dissolution rates. | 刘浩 WANG Xitang ZHANG Baoguo WANG Zhoufu YANG Yuhan | 2012 | Journal of Wuhan University of Technology(Materials Science)2012，27，1： | 2 |
| 3 | hfllu- ence of nano-silica on properties and microstructure of co- rundum castables 显示文摘 | Wang Zhoufu Zhang Baoguo Wang Xitang | 2005 | Journal of Wuhan University of Science and Technology (Natural Science Edition )2005，28，33： | 1 |
| 4 | Microstructural regulation and properties enhancement of MgO-CaO ceramics by doping Y_(2)O_(3)显示文摘MgO-CaO ceramics with enhanced microhardness and hydration resistance were successfully prepared by doping Y_(2)O_(3) in this work.The effects of introducing Y_(2)O_(3) on the microstructure and properties of MgO-CaO ceramics were investigated.The microstructural regulation effects of Y_(2)O_(3) additive on MgO,CaO,and MgO-CaO ceramics were analyzed comparatively.The results show that Y_(2)O_(3) dissolves into the CaO lattice to form solid solution in CaO ceramics,and no obvious intergranular phase forms.While the Y_(2)O_(3) additive leads to the micro structural reconstruction in MgO and MgO-CaO ceramics.By adding Y_(2)O_(3),SiO_(2) impurity from magnesium source reacts with CaO to form the silicate phases containing Y^(3+)ions in MgO-CaO ceramics.The increase in the MgO/CaO interface and the microstructural reconstruction synergistically improves the microhardness and hydration resistance of MgO-CaO ceramics markedly. | Nian Yi Yan Ma Zhoufu Wang Hao Liu Xitang Wang Yunjie Dong Zhongfeng Xia Yuxuan Zhu Chengji Deng | 2023 | Journal of Rare Earths2023，41，11： | 1 |
| 5 | Research on Corrosion Resistance of Checker Bricks in Regenerators of Glass Furnaces显示文摘To extend the service life of the upper checker bricks in the regenerator of glass furnaces with petroleum coke as fuel,the corrosion resistance of magnesia-chrome and alumina-chrome bricks with the similar apparent porosity was systematically researched.The results show that the Cr2O3 content and the microstructure present significant effects on the corrosion resistance.The molten corrosion reagent forms silicate and vanadate phases with low melting points between MgO crystals in magnesia-chrome bricks,and the volume strain generated by the melting and solidification process leads to the cracking and spalling of refractories,which intensifies the corrosion process.The encapsulation of alumina particles by alumina-chrome solid solutions in alumina-chrome bricks avoids contact with the low melting point liquid phases and improves the corrosion resistance of refractories. | AN Yi LIU Hao WANG Zhoufu MA Yan WANG Xitang | 2023 | China's Refractories2023，32，1： | 0 |
| 6 | The isolation and characterization of endothelial cells from juvenile nasopharyngeal angiofibroma显示文摘少年鼻咽的 angiofibroma (JNA ) 是在翼状的运河的区域在 posterosuperior 和 sphenopalatine foramena 之间发源的一个不平常的瘤[1 ] 。尽管病理地良性, JNA 为鼻音洞, paranasal 湾穴, pterygopalatine 窝, infratemporal 窝,轨道,甚至颅骨的底的本地侵略有倾向[2 ] 。组织学地,当一个非包含的肿瘤在含纤维的基质以内增殖和不规则的脉管的部件创作了, JNA 被描绘[3 ] 。JNA 的病原学和致病是未知的,但是 angiogenesis 为肿瘤开发被要求,并且可能是一个有用治疗学的目标。脉管的 endothelial 房间(EC ) 为 angiogenesis 的学习是理想的,但是导出 JNA 的 EC (JNAEC ) 从来成功地没被孤立过并且有教养。我们以前决定 CD105 + microvascular 内皮细胞层的存在预言 JNA 的差的耐心的预后追随者药品切除术[4 ] 。这里,第一次,我们从 JNA 描述 phenotypic 的隔离和 CD105 + JNAEC 的功能的性质。 | Jingjing Wang Zhoufu Liu Li Hu Xicai Sun Huapeng Yu Huankang Zhang Chenhe Yang Quan Liu Dehui Wang | 2016 | Acta Biochimica et Biophysica Sinica2016，48，9： | 0 |
| 7 | Effects of Two Step Calcination Process on Reaction Sintering Properties of Cordierite Materials显示文摘Cordierite materials were synthesized using natural mineral materials via the two step calcination process.The phase composition and microstructure of the specimens were analysized by X-ray diffraction( XRD) and scanning electron microscopy( SEM),respectively. The sintering properties of cordierite materials were also characterized. The effect of two step calcination process on the reaction sintering properties of cordierite materials was investigated. The results show that the two step calcination process can significantly increase the reaction sintering properties of the cordierite materials. When the weight ratio of the presynthesized cordierite to the premixed raw mineral materials is 2 1,the cordierite materials obtained by the two step calcination process have the higher bulk density and the lower apparent porosity( 2. 18 g·cm-3and 13. 85%,respectively). Furthermore,the addition of presynthesized cordierite clinker in the process of synthesizing cordierite materials can promote the growth of cordierite crystalline size. | QIN Mengli WANG Xitang WANG Zhoufu MA Yan LIU Hao | 2017 | China's Refractories2017，26，3： | 0 |
| 8 | In-situ Formation of SiC Whiskers by Ni-catalyzed Silicon-modified Pitch and Its Mechanism显示文摘The pitch was dried and modified with 1 mass%nickel nitrate and 10 mass% Si powder successively,then carbonized in Ar atmosphere at 900,1 000,1 100,1 200,1 300,and 1 400 ℃,respectively. Effects of carbonization temperature on phase composition and microstructure of Ni-catalyzed silicon modified pitch were studied by XRD,FESEM and EDS,and the growth mechanism of Si C whiskers was discussed as well. The results show that Si C whiskers form in the carbonized products of modified pitch processed in Ar atmosphere at 1 000,1 100,1 200,1 300,or 1 400 ℃; its length is about1- 6 μm; its growth mode is apical growth,and its growth mechanism accords with V- L- S mechanism. | XIA Zhongfeng WANG Zhoufu WANG Xitang LIU Hao MA Yan | 2015 | China's Refractories2015，24，2： | 0 |
| 9 | Effect of Y_2O_3 Addition on Sintering Properties and Microstructure of Spinel Materials显示文摘The effect of Y_2O_3 addition on the sintering properties and microstructure of spinel was investigated using alumina-rich spinel as the raw material. The phase constitution and microstructure of the specimens were characterized by XRD and SEM,and the pore structure of the specimens was measured by a mercury porosimeter. The results indicate that a viscous melt forms wrapping around spinel crystals by adding a little Y_2O_3 powders(1 mass%),yttrium alumina garnet will crystallize around spinel crystals by adding more Y_2O_3 powders( ≥3 mass%); the sintering properties of the spinel are significantly improved by adding Y_2O_3 powders less than 3 mass%,while they will be relatively weakened by adding Y_2O_3 powders more than 3 mass%. | LIU Jiangbo WANG Zhoufu LIU Hao WANG Xitang MA Yan | 2018 | China's Refractories2018，27，1： | 0 |
| 10 | Effect of Al Powder and Si Powder Additions on Structure and Properties of Unburned Magnesium Aluminate Spinel Refractories显示文摘Unburned magnesium aluminate spinel refractories were prepared using sintered magnesium aluminate spinel as the main raw material,phenolic resin as the binder,aluminum powder(2%,4%,and 6%by mass)and silicon powder(when Al powder addition is 4%,Si powder addition varies:1%and 2%,by mass)as additives.The effects of the Al powder and Si powder additions on the properties and microstructure of the refractories heat treated at different temperatures(1000,1400,and 1600℃for 3 h)were studied.The results show that the Al powder addition can greatly enhance the cold modulus of rupture of the samples fired at 1000 or 1400℃,and meanwhile AlN reinforcement phase forms in the matrix,which greatly improves the hot modulus of rupture of the samples at 1400℃;however,the heat treatment at 1600℃has little influence on the strength;the addition of Al powder and Si powder results in the formation of low melting point phases,greatly reducing the hot modulus of rupture.However,the low melting point phases promote sintering,which enhances the density and the cold modulus of rupture,and decreases the volume change during heating.The samples added with Al and Si all have higher cold modulus of rupture than those added with Al powder only. | ZHOU Lianzhuo WANG Zhoufu WANG Xitang LIU Hao MA Yan QUAN Zhenghuang | 2023 | China's Refractories2023，32，3： | 0 |
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