Fast synthesis of porous chromium carbide by microwave-assisted carbothermal reduction

被引：13

作者：

Gunnewiek, Rodolfo F. K. ^{[1
]}

Kiminami, Ruth H. G. A. ^{[2
]}

机构：

[1] Univ Fed Alfenas, Inst Sci & Technol, Rod Jose Aurelio Vilela 11999, BR-37715400 Pocos De Caldas, MG, Brazil

[2] PPG CEM Fed Univ Sao Carlos, Sao Carlos, SP, Brazil

来源：

CERAMICS INTERNATIONAL | 2017年 / 43卷 / 13期

基金：

巴西圣保罗研究基金会;

关键词：

Porous chromium carbide; Carbothermal reduction; Microwave synthesis; CR3C2; NANOPOWDERS; ENERGY;

D O I：

10.1016/j.ceramint.2017.05.062

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This work reports the preliminary synthesis of porous chromium carbide by microwave-assisted carbothermal reduction of simple reactants, Cr2O3 and carbon black, in only 20 min of reaction time. XRD revealed well crystalized chromium carbides, depending the reaction parameters as forward power and time. The particles morphology is a hollow sphere-like morphology, with porous walls, confirmed by SEM, with potential application as microfiltration and thermal barrier coating. The neck size of walls is a time-temperature dependent.

引用

页码：10614 / 10618

页数：5

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