The feature of fracture morphology and microdefect has been evaluated and characterized for the rare earth-zirconium alloy.
对稀土锆合金断口微观缺陷的形貌特征、微观断口形貌特征等进行了表征。
The catalyst of zirconium cross linked clay solid acid modified by SO 4 2- (A) was prepared and applied to the esterification reaction of citric acid (B) and butanol (C).
制备了SO4 2 -改性的锆交联黏土固体酸催化剂 (A) ,用于柠檬酸 (B)和正丁醇 (C)的酯化反应 ,与浓硫酸 ,钠基膨润土和锆交联黏土作催化剂的情况相比 ,SO4 2 -改性的锆交联黏土作催化剂时柠檬酸的转化率和产物的纯度更高。
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