Preparation and Properties of Low-Cost α-Sialon Ceramic Synthesized from Boron-Rich Slag-Based Mixture

Jun Bin Wu; Xiang Xin Xue; Tao Jiang

doi:10.4028/www.scientific.net/AMR.113-116.1653

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 113-116Preparation and Properties of Low-Cost α-Sialon...

Preparation and Properties of Low-Cost α-Sialon Ceramic Synthesized from Boron-Rich Slag-Based Mixture

Abstract:

With boron-rich slag, silica fume, bauxite chalmette and carbon black as starting materials, -sialon powder was prepared by carbothermal reduction nitridation(CRN). The mechanical properties of hot-pressed sintered slag α-sialon ceramic, which was started from slag -sialon powder, were measured. The hardness, toughness and bend strength of hot-pressed slag α-sialon ceramic reached 17GPa, 3.74MPam1/2 and 333.5MPa, respectively. These properties were close to that of chemical α-sialon ceramics prepared by expensive chemical agents as starting materials.

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Periodical:

Advanced Materials Research (Volumes 113-116)

Pages:

1653-1656

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.113-116.1653

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Online since:

June 2010

Authors:

Jun Bin Wu, Xiang Xin Xue, Tao Jiang

Keywords:

Boron-Rich Slag, CrN, Property Analysis, α-Sialon

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