RELATION BETWEEN PARTICLES SIZE OF RAW MATERIALS AND PROPERTIES OF MULLITE-ZrO_2 COMPOSITES PREPARED BY REACTION-SINTERING

M. RAHMANI; K. JANGORBAN; SASAN OTROJ

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RELATION BETWEEN PARTICLES SIZE OF RAW MATERIALS AND PROPERTIES OF MULLITE-ZrO_2 COMPOSITES PREPARED BY REACTION-SINTERING

机译：反应烧结制备的原料颗粒尺寸与Mullite-ZrO_2复合材料性能的关系

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In this investigation, the mullite-zirconia composites were prepared by reaction-sintering of alumina and zircon powder. Besides, the slip casting method was employed for fabrication of these composites and different times of milling process were used for reducing the particles size of raw materials. Then, the effect of raw materials particles size on the properties of these composites was investigated. The physical properties, fracture toughness, flexural strength, phase composition and microstructure of these composites after firing at 1600℃ were studied. The results showed that the milling time and then, particles size of raw materials have a great effect on the phase composition and properties of mullite-zirconia composites. The formation of tetragonal-zirconia is favored by reducing of particle size which, leads to increasing of the fracture toughness and flexural strength of these composites.

机译：在这项研究中，莫来石-氧化锆复合材料是通过氧化铝和锆石粉的反应烧结制备的。此外，采用滑铸法制备这些复合材料，并采用不同的研磨时间减少原料的粒径。然后，研究了原料粒度对这些复合材料性能的影响。研究了这些复合材料在1600℃烧成后的物理性能，断裂韧性，弯曲强度，相组成和微观结构。结果表明，研磨时间，原料粒度对莫来石-氧化锆复合材料的相组成和性能影响很大。减小颗粒尺寸有利于四方氧化锆的形成，这导致这些复合材料的断裂韧性和弯曲强度的增加。

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来源
《Cearmics》 |2012年第3期|215-221|共7页
作者
M. RAHMANI; K. JANGORBAN; SASAN OTROJ;
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作者单位

Faculty of Engineering, Shiraz University, Shiraz, Iran;

Faculty of Engineering, Shiraz University, Shiraz, Iran;

Facuity of Engineering, Shahrekord University, Shahrekord, Iran;

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原文格式 PDF
正文语种 eng
中图分类
关键词
particle size; milling; composite; mullite-zirconia; fracture toughness;

机译：粒度铣削综合;莫来石-氧化锆断裂韧性;

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RELATION BETWEEN PARTICLES SIZE OF RAW MATERIALS AND PROPERTIES OF MULLITE-ZrO_2 COMPOSITES PREPARED BY REACTION-SINTERING

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