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Effect of La_2O_3 on microstructure and high-temperature wear property of hot-press sintering FeAl intermetallic compound 被引量:3
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作者 马兴伟 金洙吉 +1 位作者 闫石 徐久军 《Journal of Rare Earths》 SCIE EI CAS CSCD 2009年第6期1031-1036,共6页
FeAl intermetallic compound with different contents of rare earth oxide La2O3 addition was prepared by hot pressing the mechanically alloyed powders.Effect of La2O3 on microstructure and high-temperature wear property... FeAl intermetallic compound with different contents of rare earth oxide La2O3 addition was prepared by hot pressing the mechanically alloyed powders.Effect of La2O3 on microstructure and high-temperature wear property of the sintered FeAl samples was investigated in this paper.The results showed that 1 wt.% La2O3 addition could refine the microstructure and increase the density of the FeAl intermetallic compound,and correspondingly improved the high-temperature wear resistance.SEM and EDS analyses of the wo... 展开更多
关键词 FEAL LA2O3 hot-press sintering high-temperature wear resistance local melting combined with oxidation rare earths
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Preparation and characterization of continuous high-temperature resistant Si-Al-C fibers by one-step method 被引量:4
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作者 ZHENG ChunMan LI XiaoDong +2 位作者 WANG Hao ZHAO DaFang HU TianJiao 《Science China(Technological Sciences)》 SCIE EI CAS 2008年第9期1425-1432,共8页
Using polymer-derived technology, continuous high-temperature resistant Si-Al-C fibers were prepared by one step method, which included melt-spinning of polyaluminocarbosilane (PACS), curing of continuous PACS fibers,... Using polymer-derived technology, continuous high-temperature resistant Si-Al-C fibers were prepared by one step method, which included melt-spinning of polyaluminocarbosilane (PACS), curing of continuous PACS fibers, and sintering of the cured products. The results show that the average diameter and tensile strength of continuous Si-Al-C fibers are 11 to 12 μm and 1.8 to 2.0 GPa, respectively. The chemical formula of Si-Al-C fibers is SiC1.01O0.0400Al0.024, which is nearly stoichometric. The fibers are mainly composed of β-SiC crystalline, small amount of α-SiC, and amorphous SiC. Continuous Si-Al-C fibers exhibit excellent thermal stability. When the fibers were exposed in argon for 1 h, the tensile strength did not decrease until 1500°C. After heat treatment at 1800°C in argon for 1 h, the fibers maintained about 80% of the initial strength. It was higher than that of Nicalon and Hi-Nicalon fibers. 展开更多
关键词 high-temperature RESISTANT CONTINUOUS Si-Al-C fibers one STEP method polymer-derived technology
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Effects of Different Processing Methods on the Qualityof Squid Chips
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作者 XUE Dong-mei CHEN Ju +1 位作者 XUE Chong-xiang SU Xun-hua 《Agricultural Science & Technology》 CAS 2019年第6期58-63,共6页
Taking squid as raw material, the effects of frying temperature and frying time on the quality of squid chips were studied under the conditions of normal pressure frying and high-temperature hot-air frying respectivel... Taking squid as raw material, the effects of frying temperature and frying time on the quality of squid chips were studied under the conditions of normal pressure frying and high-temperature hot-air frying respectively. And the best processing technology of squid chips was determined. The results showed that crispy squid chips can be obtained by frying the squid after vacuum freeze-drying, and the best processing technology of squid chips is to treat the material by hot air drying at 160℃ for 4 min after pretreatment, seasoning, protease treatment, pre-freezing and freeze-drying. The squid chips made by this technology have a flavor of frying, tightly-shrunken surface tissue, a little browning, less hardness, crispness and no greasy taste. 展开更多
关键词 Squid products Crispy squid chips high-temperature hot-air fried Processing technology
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