摘要
大幅度提高陶瓷的强度是传统陶瓷行业亟待解决的关键技术难题。采用致密化、细晶化或引入增强相等方式来提高传统陶瓷强度,因受到施工设备、生产成本等因素的限制,亦难于大规模的推广应用。类似于钢化玻璃,在陶瓷表面形成一层压缩残余应力可大幅度提高强度的思路,一直吸引着材料学家的研究兴趣。本文总结了当前预应力增强传统陶瓷的国内外研究进展,提出了预应力涂层增强陶瓷设计,并以景德镇地区日用陶瓷为例对比了不同预应力设计的增强效果。结果显示,预应力涂层增强设计能够极大限度地提高陶瓷强度,且具普遍性、不受形状和尺寸限制等优势。钢化陶瓷的实质就是“预应力陶瓷”,它的提出与实施对推动陶瓷行业“节能降耗”的发展,突破陶瓷行业走向“低碳”的技术瓶颈具有重大的意义,显示了诱人的应用前景。
Significant improvement in strength of ceramics is a key technical problem to be solved urgently in traditional ceramics industries. Due to the constraints of construction equipment and production costs, the densification and fine-grained technology and the introduction of reinforcement to improve the strength of traditional ceramics also encountered difficulty for large-scale applications. Similar to tempered glass, forming a layer of compressive residual stress on the surface of ceramics can greatly increase their strength, which has been attracting a wide range of interests. This paper is aimed to summarize the current progresses in the application of prestressing to strengthen the traditional ceramics, propose a pre-stressed coating design and compare the effects of different prestressing treatments on daily ceramics in Jingdezhen area. It is demonstrated that the prestressed coating technique can be used to greatly increase the strength of traditional ceramics, with the advantage of universality and without the shape and size limitation. Therefore, prestressed ceramics are essentially "toughened ceramics". It is believed that the proposal and implementation of such a technique will promote the development of "energy saving and consumption reduction" in ceramic industries and bring out breakthrough in the technical bottleneck of "low carbon" in ceramic industries, showing an attractive application prospect.
作者
孙熠
包亦望
李月明
万德田
李恺
潘国翔
吴天野
SUN Yi;BAO Yiwang;LI Yueming;WAN Detian;LI Kai;PAN Guoxiang;WU Tianye(School of Materials Science and Engineering,Jingdezhen Ceramic Institute,Jingdezhen 333403,Jiangxi,China;China Building Materials Academy,Beijing 100024,China)
出处
《陶瓷学报》
CAS
北大核心
2020年第4期477-484,共8页
Journal of Ceramics
基金
绿色建筑材料国家重点实验室2019年开放基金(2019GBM09)
国家重点研发计划(2018YFF01012400)
工信部2018年产业技术基础公共服务能力提升和行业质量共性技术推广项目(0714-EMTC-02-00573/6)
江西省教育厅科技项目(GJJ190698,GJJ190690)
景德镇市科技计划项目(20192GYZD008-02)。
关键词
预应力设计
传统陶瓷
高强度
涂层
pre-stressing design
traditional ceramics
high strength
coating
