Synthesis and characterization of SiC/Si3N4 composites from rice husks

被引：21

作者：

Real, C. ^{[1
]}

Cordoba, Jose M. ^{[1
,2
]}

Alcala, Maria D. ^{[1
,2
]}

机构：

[1] Mat Sci Inst Seville CSIC US, Americo Vespucio 49, Seville 41092, Spain

[2] Univ Seville, Inorgan Chem Dept, C Prof Garcia Gonzalez 1, E-41012 Seville, Spain

来源：

CERAMICS INTERNATIONAL | 2018年 / 44卷 / 12期

关键词：

Rice husk; Carbothermal reduction; Composite; Phosphoric acid; SILICON-NITRIDE; CARBOTHERMAL REDUCTION; MECHANICAL-PROPERTIES; TEMPERATURE; POWDERS; GEL; NANOPOWDERS; FABRICATION;

D O I：

10.1016/j.ceramint.2018.05.090

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：

SiC-Si3N4 composites have been obtained by carbothermal reduction of rice husk under a nitrogen-argon atmosphere at 1450 degrees C, which is a lower temperature than those used by other authors. On the other hand, tailoring the argon/nitrogen ratio led to the obtained of SiC-Si3N4 composites across the whole range of compositions. Phosphoric acid treatment permited the synthesis of the composite without a pyrolysis step. The final products were characterized by X-ray diffractometry, IR spectroscopy and scanning electron microscopy.

引用

页码：14645 / 14651

页数：7

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