Layered porous ceramic used for polymer-infiltrated-ceramic-network materials (PICNs) may be a promising candidate for dental restoration. The effect of sintering temperature of ceramic green bodies on mechanical and optical properties of PICNs is unclear. The purpose was to fabricate PICNs and evaluate their mechanical and optical properties. Polymer-infiltrated layered silicates for dental restorative materials were prepared via infiltrating polymerizable monomers into partially sintered porous silicates and thermo-curing. Bending samples for flexural strength and fracture toughness were fabricated (sample numbers of n = 15). Vickers hardness and elastic modulus were measured via nano-indentation (n = 10). One-way ANOVA and Weibull statistics were used for statistical analysis. Optical property was characterized by spectral reflectance. Brittleness index was used to characterize the machinability of the materials. Microstructures and phase structures were investigated using scanning electron microscopy (SEM) and X-ray diffractometer (XRD), respectively. Flexural strength of polymer-infiltrated layered silicates varied from 91.29 to 155.19 MPa, fracture toughness ranged from 1.186 to 1.782 MPa·m1/2, Vickers hardness ranged from 1.165 to 9.596 GPa, and elastic modulus ranged from 25.35 to 100.50 GPa. The formed glass phases at 1200 and 1300 °C showed influences on corresponding optical property, which could be observed from spectral reflectance. A kind of PICNs was fabricated by infiltrating polymerizable monomers into layered porous ceramic networks. Sintering temperature could have dramatic effects on the mechanical and optical properties of porous ceramics and PICNs. These kinds of materials possess similar properties to that of natural tooth and could be used for dental restoration.

Ben-Cang Cui

Jing Li

Yuan-Hua Lin

Yang Shen

Ming Li

Xu-Liang Deng

Ce-Wen Nan

Rare Metals

作为一份经过同行评审的国际研究期刊，RARE METALS 提供了一个论坛，用于发表完整的原创论文和邀请综述，以促进对稀有金属及其应用的深入了解。寻求具有高影响潜力和/或实质性推进科学技术前沿的论文。

Rare Metals is a peer-reviewed international research journal that provides a forum for the publication of complete original papers and invited reviews, aimed at promoting a deeper understanding of rare metals and their applications. We welcome research papers with high impact potential and/or those that significantly advance the frontiers of science and technology.

《Rare Metals》是一份经过同行评审的国际研究期刊，提供了一个论坛，用于发表原创的完整论文和邀请综述，旨在促进对稀有金属及其应用的深入理解。我们欢迎具有高影响力和/或能够实质性推动科学技术前沿的研究论文。

Rare Met.

Polymer-infiltrated layered silicates for dental restorative materials

The purpose was to fabricate PICNs and evaluate their mechanical and optical properties and found that these kinds of materials possess similar properties to that of natural tooth and could be used for dental restoration.

Category	Quartile
材料科学	1
材料科学, 材料科学综合	2
材料科学, 冶金工程	2

Polymer-infiltrated layered silicates for dental restorative materials

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Journal Info

Category	Quartile
METALLURGY & METALLURGICAL ENGINEERING	1