摘要
以液相法合成的氟金云母纳米前驱粉体、氟磷灰石纳米粉体为原料,借助粉末冶金热压工艺制备了氟金云母/氟磷灰石生物玻璃陶瓷。利用X射线衍射(XRD)仪、场发射扫描电子显微镜(FESEM)等设备,研究了复合材料的晶化行为、相组成、显微结构和力学性能。研究结果表明:在设定的烧结工艺下,玻璃陶瓷的晶化度显著提高。随着氟磷灰石质量分数的增加,玻璃陶瓷的孔隙度显著降低,抗弯强度和显微硬度逐渐升高。氟磷灰石的特征结构对玻璃陶瓷性能的提升有较大作用。
The nano precusor powder of fluorapatite and nano powder of fluorophlogopite were prepared by liquid method.Fluorphlogopite/fluorapatite biological glass-ceramic was prepared by hot pressed technology in vacuum sintering furnace.The crystallization behaviors,crystalline phases,microstructures and mechanical behavior of the glass-ceramics were investigated by X-ray diffraction(XRD)and field emission scanning electron microscope(FESEM).The results reveal that under certain sintering process,crystallity of the glass-ceramic is improved obviously.With the increasing of fluorapatite mass-fraction,the porosity of the glass ceramic is decreased significantly,and the bending strength and micro-hardness are improved gradually.The good performance of the glass-ceramic is attributed to the characteristic structure of fluorapatite.
作者
郭帅东
逯峙
王广欣
邓舜兰
毕连杰
GUO Shuaidong;LU Zhi;WANG Guangxin;DENG Shunlan;BI Lianjie(Materials Science & Engineering School,Henan University of Science & Technology,Luoyang 471023,China;Henan Engineering Research Center for High Purity Materials & Sputtering Targets,Henan University of Science & Technology,Luoyang 471023,China;Luoyang Key Laboratory of High Purity Materials & Sputtering Targets,Henan University of Science & Technology,Luoyang 471023,China)
出处
《河南科技大学学报（自然科学版）》
CAS
北大核心
2019年第6期13-18,M0003,共7页
Journal of Henan University of Science And Technology:Natural Science
基金
国家自然科学基金项目(U1504516)
河南省高等学校重点科研基金项目(16A430016)
河南省高等学校学科创新引智基地基金项目
关键词
热压
玻璃陶瓷
力学性能
显微组织
hot press
glass-ceramic
mechanical property
microstructure
