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sintering and facilitate the densification of the composite. However, the additives present a drawback at high temperatures since they decrease the mechanical properties of the composites. Recently, Si3N4/SiC composites were fabricated via the polymer precursor route without any additives, using electric field assisted sintering (EFAS). In this study, fully densified Si3N4/SiC nanocomposites......
Low loss Z-type Hexaferrites with Bi2O3 Additives for Ultra-high Frequency Antenna Applications郭永强,WANG Shizhang,聂彦School of Optical and Electronic Information, Huazhong University of Science... with low magnetic and dielectric loss tangent over a frequency ranging from 600 to 800 MHz. The experimental results showed that addition of Bi2O3 lowered the sintering temperature(1 020......
of air toxics using activated coke [J]. Sintering and Pelletizing, 2017, 40(3): 79-85. (in Chinese) [8] YU Zhi-yuan, FAN Xiao-hui, GAN Min, CHEN Xu-ling. Effect of Ca-Fe oxides additives on NOx reduction... J. Cent. South Univ. (2020) 27: 469-477 DOI: https://doi.org/10.1007/s11771-020-4309-y Process control technology of low NOx sintering based on coke pretreatment WANG Zhao-cai(王兆才)1, 2, ZHOU Zhi......
ultra fine powder was 0.42 μm. The relationships between the density, bending strength and grain size of the sintered compact and the quantity of additives, sintering temperature, sintering time were...动力学 , 得出其物质迁移机制主要为晶界扩散.最后研究了其相组成 , 掺入的碳除溶解于碳化硼外 , 以游离碳形式存在 , 没有新相生成. 关键词: 碳化硼;活化烧结;烧结动力学; 中图分类号: TQ174.65 收稿日期:1999-03-17 Activated sintering and sintering kinetics of boron......
氧化镁陶瓷抗热震性能 蒋丹宇1,徐兵1,徐海芳1,李雨林1,黄德信1,张骋2 (1.中国科学院上海硅酸盐研究所,上海,200050;2.上海应用技术学院,上海,200235) 摘要:以氧化镁为原料并添加稀土氧化物,CaO,V_2O_5,ZrO_2和Al_2O_3等烧结助剂,采用不同温度煅烧粉体,造粒,成型和烧结后,制备了致密的氧化镁陶瓷试样.随后,将加热的试样在水中急冷,经过不同次数后,观察样片表面开裂的情况.通过对样片密度,气孔率和硬度的测定,以及对试验材料显微结构的观察,分析了烧结助剂,粉体制备工艺和烧结工艺对氧化镁陶瓷抗热震性能的影响. 关键词:氧化镁; 抗热震性能; 烧结助剂; MgO ceramics; thermal-shock resistance; sintering additives; [全文内容正在添加中] ......
J. Cent. South Univ. (2021) 28: 1637-1651 DOI: https://doi.org/10.1007/s11771-021-4723-9 Sintering behavior and mechanical properties of sintered ceramics based on spodumene tailings YANG Jie(杨洁)1... (no pressure was used during shaping step) and atmospheric pressure sintering with low-melting point glass (LPG) powder as the binding material to facilitate the transformation of spodumene flotation tailings......
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Effects of sintering pressure and temperature on microstructure and tribological characteristic of Cu-based aircraft brake material XIONG Xiang(熊 翔), SHENG Hong-chao(盛洪超), CHEN Jie(陈 洁... was prepared and the effects of sintering pressure and temperature on microstructure and tribological characteristic were investigated. For the constant sintering temperature, when the sintering......
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; Sintering technology for micro heat...; Abstract: In order to study reasonable sintering technological parameters and appropriate copper powder size......
