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| 1 | Use of Electrical Resistance to Detect the Formation and Decomposition of Methane Hydrate显示文摘电的抵抗(R) 的变化同时在 CH4 水合物形成和分解的过程试验性地被学习,用象辅助检测方法的温度和压力。实验结果证明 R 与水合物形成增加并且与水合物 decompositon 减少。R 比温度或压力对水合物形成和 decompositon 更敏感,它显示 R 的察觉将是为检测天然气的一个有效工具水合物(NGH ) 份量上。 | Xitang Zhou Shuanshi Fan Deqing Liang Donglei Wang Ningsheng Huang | 2007 | Journal of Natural Gas Chemistry2007，16，4： | 6 |
| 2 | 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 |
| 3 | SiAlON Bonded Corundum or SiC Composites Synthesized in Different Atmospheres显示文摘Using corundum powder,SiC powder,Si3N4 powder,α-Al2O3 micropowder and metal Al powder as starting materials,PVA as binder,after ball milling,mixing,aging,moulding and drying,SiAlON bonded corundum or SiC composites were synthesized at 1 600 ℃ for 6 h in air,graphite embedded condition and(graphite+SiC)embedded condition,respectively.Effects of corundum or SiC powder additions(the mass percent was 7.5%-90%)and sintering atmosphere on forming amount and appearance of SiAlON phase,phase composition,microstructure and properties of the composites were studied.The results show that:(1)with corundum powder addition increasing,density and sintering property of SiAlON bonded corundum composites fired in three different conditions all improve,but the sintering property of the specimens fired in oxidation atmosphere is better than that in reduction atmosphere;(2)the main phases of SiAlON bonded corundum composites fired in two reduction atmospheres are corundum,SiAlON and SiC.The specimens fired in oxidation atmosphere have lamination phenomenon,the main phases of non-oxidation layer are SiAlON,corundum and a little mullite;(3)column-like or fiber-like SiAlON forms in SiAlON bonded corundum composites fired in two different atmospheres.Column-like SiAlON forms in oxidation atmosphere grows better than in reduction atmosphere;(4)with SiC powder addition increasing,density and sintering property of SiAlON bonded SiC composites fired in two reduction atmospheres both reduce.The specimens fired in oxidation atmosphere are oxidized and thicker glaze layer forms. | TAN Qinghua WANG Xitang | 2010 | China's Refractories2010，19，1： | 2 |
| 4 | 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 |
| 5 | 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 |
| 6 | Solution behavior of CaO-MgO-SiO2 system bio-soluble re-fractory ceramic fibers显示文摘 | Wang Xitang Luo Chenze Zhang Baoguo | 2007 | Key Engineering Materi- als2007，，： | 1 |
| 7 | 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 |
| 8 | 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 |
| 9 | 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 |
| 10 | 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 |
| 11 | Effect of TiO_2 Sol Impregnation on Biogenic Hierarchical Porous Structure of Rice Husk after High Temperature Treatment显示文摘Biogenic hierarchical porous rice husk SiO 2samples were prepared from pre-treating rice husk( RH) at low temperatures following TiO 2sol impregnation and pyrolysis process. The samples were characterized by scanning electron microscopy,X-ray diffraction and energy dispersive spectrometer. Biogenic hierarchical porous structure of untreated RH SiO 2starts to crack and break down from 800 ℃,whereas TiO 2grain film is formed on the pore wall and surface of RH SiO 2after sol impregnation and heat treatment, which enhances the skeleton strength; the biogenic hierarchical porous structure of the rice husk still maintains after firing at 1 400 ℃. | CHEN Hui ZHAO Lei LI Shujing WANG Xitang WANG Junjie LI Yuanbing | 2014 | China's Refractories2014，23，4： | 0 |
| 12 | 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 |
| 13 | 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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