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首页> 外文会议>China International Conference on High-Performance Ceramics;CICC;Satellite Symposium on Thermoelectrics;International Workshop on Layered and Graded Materials; 20051023-26;20051023-26;20051023-26;20051023-26; Chengdu(CN);Chengdu(CN);Chengdu(CN);Chengdu(C >Processing and Characterization of Carbothermal Reduction and Nitridation from Kaolinite-Polyacrylamide Intercalation Compound
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Processing and Characterization of Carbothermal Reduction and Nitridation from Kaolinite-Polyacrylamide Intercalation Compound

机译：高岭石-聚丙烯酰胺插层化合物碳热还原氮化的工艺与表征

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摘要

The kaolinite-polyacrylamide intercalation compound was prepared by the displacement reaction of the kaolinite-formamide intercalation precursor with acrylamide and the polymerization under 140℃ for 15h with the catalysis of dibenzoyl peroxide, Sialon was synthesized from kaolinite-polyacrylamide intercalation compound by carbothermal reduction and nitridation (CRN) processing at 1400℃. The kaolinite-carbon mixture and its CRN product were also prepared for the comparison with the CRN result of intercalation compound. XRD, FT-IR, and TEM were used to characterize the phases, structure and morphology of products. In the CRN product from the intercalation compound, β'-sialon is the main phase. And the reduction and nitridation rate from the intercalation compound was greater than that from the mixture. There was higher sialon phase's content and lower mullite phase's content in the CRN product from the intercalation compound than that from the mixture. The CRN processing of kaolinite intercalation compound is a novel and effective method of sialon synthesis.
机译：通过高岭石-甲酰胺插层前体与丙烯酰胺的置换反应，在140℃聚合反应15h，以过氧化二苯甲酰为催化剂，制备高岭石-聚丙烯酰胺插层化合物。 （CRN）在1400℃处理。还制备了高岭石-碳混合物及其CRN产物，以与插层化合物的CRN结果进行比较。 XRD，FT-IR和TEM用于表征产物的相，结构和形态。在插层化合物的CRN产物中，β'-赛隆为主要相。并且，插层化合物的还原和氮化速率大于混合物的还原和氮化速率。插层化合物的CRN产品中的sialon相含量高于莫来石相含量，混合物中的莫来石相含量较低。高岭石插层化合物的CRN处理是一种新的有效的sialon合成方法。

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