典型文献
Preparation and oxidation characteristics of ZrC–ZrB2 composite powders with different proportions
文献摘要：
ZrC and ZrB2 are both typical ultra-high temperature ceramics, which can be used in the hyperthermal environment. In this study, a method for preparing ultrafine ZrC–ZrB2 composite powder was provided, by using the raw materials of nano ZrO2, carbon black, B4C, and metallic Ca. It is worth pointing out that ZrC–ZrB2 composite powder with any proportion of ZrC to ZrB2 could be synthesized by this method. Firstly, a mixture of ZrC and C was prepared by carbothermal reduction of ZrO2. By adjusting the addition amount of B4C, ZrC was boronized by B4C to generate ZrC–ZrB2 composite powder with different compositions. Using this method, five composite powders with different molar ratios of ZrC and ZrB2 (100ZrC, 75ZrC–25ZrB2, 50ZrC–50ZrB2, 25ZrC–75ZrB2, and 100ZrB2) were prepared. When the temperature of boronization and decarburization process was 1473 K, the particle size of product was only tens of nanometres. Finally, the oxidation charac-teristics of different composite powders were investigated through oxidation experiments. The oxidation resistance of ZrC–ZrB2 composite powder continued to increase as the content of ZrB2 increased.
文献关键词：
中图分类号：
作者姓名：
Yu Wang;Guohua Zhang;Kuochih Chou
作者机构：
State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing,Beijing 100083,China
文献出处：
引用格式：
[1]Yu Wang;Guohua Zhang;Kuochih Chou-.Preparation and oxidation characteristics of ZrC–ZrB2 composite powders with different proportions)[J].矿物冶金与材料学报,2022(03):521-528
A类：
boronized,100ZrC,75ZrC,25ZrB2,50ZrC,50ZrB2,25ZrC,75ZrB2,100ZrB2,boronization,nanometres
B类：
Preparation,oxidation,characteristics,composite,powders,different,proportions,typical,high,temperature,ceramics,which,can,be,used,hyperthermal,environment,In,this,study,method,preparing,ultrafine,was,provided,by,using,raw,materials,ZrO2,carbon,black,B4C,metallic,It,worth,pointing,out,that,any,could,synthesized,Firstly,mixture,prepared,carbothermal,reduction,By,adjusting,addition,amount,generate,compositions,Using,five,molar,ratios,were,When,decarburization,process,particle,product,only,tens,Finally,investigated,through,experiments,resistance,continued,content,increased
AB值：
0.393607
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