Material design to realize fine geometries porcelain with large, thin, and precise shape

材料设计，实现大、薄、精确形状的精细几何陶瓷

• 批准号: 21K12901
• 负责人: HAO DONG
• 金额: $ 2.66万
• 依托单位: Saga University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Early-Career Scientists
• 财政年份: 2021
• 资助国家: 日本
• 起止时间: 2021-04-01 至 2024-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21K12901/
• 关键词: Strengthened pottery; Wollastonite; Anorthite; Near-zero; Sintering shrinkage; Liquid sintering; Pytoplastic deformation; Porcelain; Material design; Pyroplastic deformation; Densification; sintering shrinkage; Wollatonite; Near-zero shrinkag

We defined the standards for near-zero sintering shrinkage pottery (NZS) fired -1300 degrees based on expert suggestions, as follows: i) sintering shrinkage (SS) of <2.0%; ii) pyroplastic deformation index (PI) of <1.5×10-6 mm-1.Then, we analyzed the thermal mechanical properties and phase composition of NZS. The sintering shrinkage of NZS stops at 1100～1200 degrees due to anorthite crystallization, confiremed by high-temprature XRD. After analyzing the phase composition of the pottery fired at 1200 degrees and the pottery with SS <2.0% fired at 1300 degrees, respectively, phase composition criteria of NZS was established, and the suppressing mechanism was clarified.

根据专家建议，确定了-1300 ℃烧成的近零收缩陶瓷（NZS）的标准：烧结收缩率（SS）<2. 0%，热塑性变形指数（PI）<1. 5 ×10-6 mm-1。高温XRD分析表明，NZS的烧结收缩在1100~1200 ℃时停止，这是由于钙长石的结晶所致。通过对1200 ℃烧成的陶瓷和1300 ℃烧成的SS <2.0%的陶瓷的物相组成分析，建立了NZS的物相组成判据，阐明了NZS的抑制机理。

项目成果

Near-zero sintering shrinkage in porous porcelain with wollastonite addition

添加硅灰石的多孔陶瓷的烧结收缩接近于零

• 发表时间: 2022
• 作者: Dong HAO; Takashi AKATSU;Nobuaki KAMOCHI
• 通讯作者: Nobuaki KAMOCHI

Surface strengthening of building tiles by ion exchange with adding molten salt of KOH

添加KOH熔盐离子交换法表面强化建筑砖

• DOI: 10.1111/ijac.14003
• 发表时间: 2022
• 期刊: International Journal of Applied Ceramic Technology
• 影响因子: 2.1
• 作者: Xu Wei;Li Kai;Li Yueming;Sun Yi;Bao Yiwang;Wan Detian;Tan Xiang;Hao Dong
• 通讯作者: Hao Dong

Minimization of water absorption and pyroplastic deformation of wollastonite-containing alumina-strengthened porcelain

含硅灰石的氧化铝强化瓷的吸水率和热塑变形最小化

• DOI: 10.1080/21870764.2021.1996865
• 发表时间: 2021
• 期刊: Journal of Asian Ceramic Societies
• 影响因子: 2.3
• 作者: Hao Dong;Akatsu Takashi;Kamochi Nobuaki;Shiwa Yuzo
• 通讯作者: Shiwa Yuzo

Realizing both small water absorption and small pyroplastic deformation in alumina-strengthened porcelain through Materials design

通过材料设计实现氧化铝强化瓷的小吸水率和小热塑变形

• 发表时间: 2021
• 作者: Dong Hao;Takashi Akatsu;Nobuaki Kamochi,Asami Ohtake;Atsunori Shiraishi
• 通讯作者: Atsunori Shiraishi

The 12th International Conference on the Science and Technology for Advanced Ceramics

第十二届国际先进陶瓷科学与技术会议

• 发表时间: 2021
• 作者: Dong Hao;Takashi Akatsu;Nobuaki Kamochi
• 通讯作者: Nobuaki Kamochi