But Al accelerates the growth of ? ? - Si 3 N 4 to a certain extent.

但Al对β-Si_ 3N_4生成有一定的促进作用.

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SI 3 and SI 4 are all affected MU, and the effect is essential.

SI3和SI4都受测量单位的影响, 且有本质上的影响,不是很合适的形状指数.

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The friction mechanism of Ti - Si - C - N coatings was controlled by a - Si 3 N 4 contents in coatings.

提出薄膜中 Si3N4 非晶体含量是影响 Ti -Si-C-N薄膜摩擦机制的控制因素.

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By applying double beam optical stimulation, ultrafine and amorphous Si 3 N 4 nano - powder can be obtained.

采用双光束激发制备得到了超微非晶纳米氮化硅粉体.

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In this paper , the research advance of Si 3 N 4 ceramic material has been described in detail.

对氮化硅系陶瓷材料的研究进展作了较详细的论述.

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High properties transparent Si 3 N 4 - BN - SiO 2 ceramic composites with Si - B - O - N based were prepared by gas pressure sintering ( GPS ).

本研究选择 Si3N4 -BN-SiO2体系,通过气氛压力烧结工艺 ( GasPressure Sintering,GPS ) 研制了耐高温、抗冲刷Si-B-O-N系陶瓷透波材料.

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