title: The improved mechanical properties of β-CaSiO3 bioceramics with Si3N4 addition.
abstract: The motivation of this study is to investigate the effect of Si3N4 addition on the sinterability of β-CaSiO3 ceramics. β-CaSiO3 ceramics with different content of Si3N4 were prepared at the sintering temperature ranging from 1000°C to 1150°C. The results showed that Si3N4 can be successfully used as sintering additive by being oxidized to form SiO2. The β-CaSiO3 ceramics with 3wt% Si3N4 sintered at 1100°C revealed flexural strength, hardness and fracture toughness of 157.2MPa, 4.4GPa and 2.3MPam(1/2) respectively, which was much higher than that of pure β-CaSiO3 ceramics (41.1MPa, 1.0GPa, 1.1MPam(1/2)). XRD analysis and SEM observation indicated that the main phase maintained to be β-phase after sintering.
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; Graduate School of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Pan
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.
authors.forename: Kaihui
authors.initials: K
authors.lastname: Zuo
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.
authors.forename: Dongxu
authors.initials: D
authors.lastname: Yao
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.
authors.forename: Jinwei
authors.initials: J
authors.lastname: Yin
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; Graduate School of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Yunchuan
authors.initials: Y
authors.lastname: Xin
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.
authors.forename: Yongfeng
authors.initials: Y
authors.lastname: Xia
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.
authors.forename: Hanqin
authors.initials: H
authors.lastname: Liang
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China. Electronic address: yuping-zeng@mail.sic.ac.cn.
authors.forename: Yuping
authors.initials: Y
authors.lastname: Zeng
mesh_terms: D017610:Calcium Compounds / Q000737:chemistry*; D002516:Ceramics / Q000737:chemistry*; D055595:Mechanical Phenomena; D017640:Silicates / Q000737:chemistry*; D017655:Silicon Compounds / Q000737:chemistry*; D013329:Structure-Activity Relationship; D013696:Temperature
chemical_list: D017610:Calcium Compounds; D017640:Silicates; D017655:Silicon Compounds; C032734:silicon nitride; C031293:calcium silicate
keywords: Mechanical properties; Oxidation; Si(3)N(4); β-CaSiO(3)