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粉末-烧结法制备CaO-P_2O_5-TiO_2-Na_2O系微晶玻璃 被引量:1
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作者 殷海荣 薛立莎 李启甲 《硅酸盐通报》 CAS CSCD 北大核心 2006年第2期27-29,共3页
用粉末-烧结法制备了钙磷酸盐微晶玻璃,通过DTA,XRD,SEM测试探讨了材料的制备过程、相组成及显微结构。玻璃粉末在烧结的同时进行晶化,热处理后得到了主晶相为β-Ca3(PO4)2和β-Ca2P2O7的微晶玻璃,随着烧结温度的提高,β-Ca2P2O7的含量... 用粉末-烧结法制备了钙磷酸盐微晶玻璃,通过DTA,XRD,SEM测试探讨了材料的制备过程、相组成及显微结构。玻璃粉末在烧结的同时进行晶化,热处理后得到了主晶相为β-Ca3(PO4)2和β-Ca2P2O7的微晶玻璃,随着烧结温度的提高,β-Ca2P2O7的含量先减小后增大,950℃烧结的微晶玻璃中β-Ca2P2O7的含量最大。实验结果表明,用粉末-烧结法可制得具有生物活性晶相的钙磷酸盐微晶玻璃。 展开更多
关键词 钙磷酸盐 微晶玻璃 粉末-烧结法
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Effects of various sintering methods on microstructure and mechanical properties of CP-Ti powder consolidations
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作者 Je-ha SHON Jong-moon PARK +3 位作者 Kyeong-sik CHO Jae-keun HONG Nho-kwang PARK Myung-hoon OH 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2014年第S1期59-67,共9页
Effects of various sintering methods such as spark plasma sintering(SPS), hot pressing(HP) and electric resistance sintering(ERS) on the microstructure and mechanical properties of commercial pure titanium(CP-Ti) powd... Effects of various sintering methods such as spark plasma sintering(SPS), hot pressing(HP) and electric resistance sintering(ERS) on the microstructure and mechanical properties of commercial pure titanium(CP-Ti) powder consolidations with particle size of <147 μm, <74 μm and <43 μm were studied. The smaller particle powders are densified to proceed at a higher rate. Dense titanium with relative density up to 99% is found to take place at 850 °C under 30 MPa of SPS and HP condition. However, in case of ERS, CP-Ti powders were densified almost at 950 °C under 30 MPa. The microstructure of sintered titanium is composed of equiaxed grains at 850-950 °C. The yield strength of sintered body composed of <43 μm powder is 858 MPa by using SPS at 850 °C under 30 MPa. When there is a higher content of small particle, the higher yield strength value is obtained both by using SPS and HP. However, when ERS is introduced, the highest yield strength is 441 MPa at 950 °C under 30 MPa, which shows much lower values than those by SPS and HP methods. ERS method takes much less sintering time compared with SPS and HP. Nevertheless, higher sintering temperature results in lower strength and elongation because of brittle fracture. 展开更多
关键词 CP-Ti powders sintering method spark plasma sintering hot pressing electrical resistance sintering
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Key parameters for low temperature warm compaction of high density iron-based P/M materials
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作者 曹顺华 林信平 +2 位作者 李炯义 谢湛 蔡志勇 《Journal of Central South University of Technology》 EI 2005年第4期359-365,共7页
In order to reduce powder temperature to lower than 100℃ in warm compaction by changing polymer lubricant design, powder flowability, warm compacting behavior, lubricating mode as well as ultimate tensile strength af... In order to reduce powder temperature to lower than 100℃ in warm compaction by changing polymer lubricant design, powder flowability, warm compacting behavior, lubricating mode as well as ultimate tensile strength after sinter-hardening and tempering were investigated systematically. By means of low temperature warm pressing and sintered hardening technique, samples with the sintered densities of 7.407.45g/cm3 and the strengths of 950 1390MPa are achieved as the early compacting pressure is 686735MPa. 展开更多
关键词 iron-based P/M materials low temperature warm compaction lubricating mode
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钙磷酸盐系生物活性微晶玻璃的制备与研究
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作者 武丽华 陈福 +4 位作者 赵恩录 张文玲 李军明 曾雄伟 黄俏 《陶瓷》 CAS 2007年第9期24-26,共3页
用粉末-烧结法制备了钙磷酸盐微晶玻璃,通过DTA,XRD,SEM探讨了材料的制备过程、相组成及显微结构。玻璃粉末在烧结的同时进行晶化,热处理后得到了主晶相为β-Ca3(PO4)2和β-Ca2P2O7的微晶玻璃,随着烧结温度的提高,β-Ca2P2O7的含量先减... 用粉末-烧结法制备了钙磷酸盐微晶玻璃,通过DTA,XRD,SEM探讨了材料的制备过程、相组成及显微结构。玻璃粉末在烧结的同时进行晶化,热处理后得到了主晶相为β-Ca3(PO4)2和β-Ca2P2O7的微晶玻璃,随着烧结温度的提高,β-Ca2P2O7的含量先减小后增大,950℃烧结的微晶玻璃中β-Ca2P2O7的含量最大。实验结果表明,用粉末-烧结法可制得具有生物活性晶相的钙磷酸盐微晶玻璃。 展开更多
关键词 钙磷酸盐生物玻璃 粉末-烧结法 微晶玻璃
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