Preparation and Mechanical Properties of Zirconia Fiber Reinforced Ultra-Thin Ceramic Plate

Abstract

Abstract: As a kind of light, thin and low energy consumption home decoration products, building ceramic sheet has gradually become the development trend of the market and how to further thinning and strengthen it has also become a research hotspot. In this article, the building ceramics powder with high aluminum content was used as the matrix, a secondary ball milling method was designed and the zirconia fiber with the length-diameter ratio of 70 to 82 was used as the reinforcing phase into the matrix. With the help of KH570 which was as the surface modifier to improve the interface bonding of fiber/matrix (F/M), the zirconia fiber reinforced ultra-thin ceramic plate was prepared. The results show that the secondary ball milling process can effectively influence the fiber dispersion in the matrix. When the doping amount of zirconia fiber is 3% (by mass), the bending strength of the ultra-thin ceramic plate reaches 106.4 MPa which is 9.92% higher than the blank sample of 96.8 MPa. In the high temperature solid phase reaction, the permeation of Na⁺ and K⁺ in the ceramic melt phase to the zirconia lattice causes the transformation of the tetragonal zirconia phase to the zirconite phase. Many positive strengthening mechanisms in the tetragonal zirconia phase, such as micro-crack expansion, particle diffusion enhancement and fiber bridge-pull out, may be responsible for inhibiting cracks’ propagation.

Key words: building ceramic sheet, secondary ball milling process, dispersity, zirconia fiber, strengthening mechanism

CLC Number:

TQ174.76

ZHONG Xinzi, CAO Liyun, HUANG Jianfeng, LIU Yijun, OUYANG Haibo, WANG Qinggang. Preparation and Mechanical Properties of Zirconia Fiber Reinforced Ultra-Thin Ceramic Plate[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(10): 3472-3478.

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