Abstract The oxidation behavior of SiBCN-Zr composites prepared through incorporating sol-gel processing with spark plasma sintering (SPS) was studied in detail. It is indicated from results that a dense amorphous SiO 2 film was formed on the samples superficially in the course of oxidation, which avoided the sample from being further oxidized. The oxidation of ZrB 2 would boost the oxygen to be diffused, which aggravates the oxidation. Amorphous SiO 2 would fill up the pores and avoid ZrB 2 particles from being further oxidized. A preferable anti-oxidation behavior was also manifested by BN(C) arising from the formation of B 2 O 3 phases.

中文翻译：

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反应放电等离子烧结制备的SiBCN-Zr复合材料在1500℃下的氧化行为

摘要 详细研究了溶胶-凝胶工艺与放电等离子烧结（SPS）相结合制备的SiBCN-Zr复合材料的氧化行为。结果表明，在氧化过程中，样品表面形成了致密的非晶SiO 2 薄膜，避免了样品进一步氧化。ZrB 2 的氧化会促进氧的扩散，从而加剧氧化。无定形SiO 2 将填充孔隙并避免ZrB 2 颗粒被进一步氧化。由B 2 O 3 相的形成产生的BN(C)也表现出优选的抗氧化行为。