摘要
云南具有丰富的矿产资源,钠长石是当地的优势矿种之一,然而目前钠长石产业结构单一,产品附加值低。本文以云南钠长石为原材料,采用数字光处理(DLP)技术制备钠长石陶瓷,探究了烧结温度对钠长石陶瓷性能的影响,并基于研究结果成功制备出结构复杂的钠长石陶瓷。结果表明,DLP技术制备的钠长石陶瓷成形效果良好,钠长石陶瓷素坯的抗弯强度为18.30 MPa。随着烧结温度的升高,钠长石陶瓷的主要物相为钠长石和钙长石,无新相产生,且钠长石陶瓷的收缩率、致密化程度和抗弯强度逐渐增大。当烧结温度达1 150℃时,钠长石陶瓷试样收缩率最大,为35.25%(Z方向),微观组织致密,力学性能良好,其抗弯强度为98.69 MPa。将云南钠长石与数字光处理技术相结合制备高性能、结构复杂的钠长石陶瓷对促进云南钠长石的产业发展具有较为重要的推动作用。
Yunnan province is rich in mineral resources, and albite is one of the local dominant minerals. However, at present, the industrial application area of albite is simple and the addtional value of products is low. In this paper, Yunnan albite was used as the raw material, and albite ceramics were prepared by digital light processing(DLP) technology. The effect of sintering temperature on the properties of albite ceramics was investigated, and albite ceramics with complex structure were successfully prepared based on the research results. The results show that the forming effects of albite ceramics prepared by DLP are good, and the bending strength of albite green body is 18.30 MPa. With the increase of sintering temperature, the main phases of albite ceramics are albite and anorthite, and there are not other phases. The shrinkage, densification degree and bending strength of albite ceramics increase gradually. When the sintering temperature reaches 1 150 ℃, the shrinkage of the albite ceramics is the largest, 35.25%(Z direction). Meanwhile, the microstructure of albite ceramics is dense, the mechanical property is satisfactory, and the bending strength is 98.69 MPa. It has important effect on promoting the industrial development of Yunnan albite that combining Yunnan albite with DLP technology to prepare high-performance albite ceramics with complex structure.
作者
刘星宇
吴甲民
刘玉玺
化帅斌
LIU Xingyu;WU Jiamin;LIU Yuxi;HUA Shuaibin(State Key Laboratory of Materials Processing and Die&Mould Technology,School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Engineering Research Center of Ceramic Materials for Additive Manufacturing,Ministry of Education,Wuhan 430074,China)
出处
《硅酸盐通报》
CAS
北大核心
2023年第2期736-742,共7页
Bulletin of the Chinese Ceramic Society
基金
中央高校基本科研业务费专项资金(2020kfyFPZX0033,2019kfyXMPY020,2018KFYYXJJ030,2019kfyXKJC011)。
关键词
钠长石
数字光处理
烧结温度
抗弯强度
微观形貌
收缩率
albite
digital light processing
sintering temperature
bending strength
microscopic morphology
shrinkage
