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Effects of sintering additives and sintering methods on the mechanical, antimicrobial and optical properties of Si3N4 bioceramics.
Du, Songmo; Li, Fei; Zhang, Jie; Chen, Zhanglin; Zhang, Shijia; Zhao, Shuo; Zhao, Dengke; Fan, Binbin; Chen, Kexin; Liu, Guanghua.
Afiliação
  • Du S; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
  • Li F; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
  • Zhang J; Advanced Ceramics and Structures Center, Yongjiang Laboratory, Zhenhai District, Ningbo City, Zhejiang Province, China.
  • Chen Z; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
  • Zhang S; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
  • Zhao S; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
  • Zhao D; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
  • Fan B; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
  • Chen K; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
  • Liu G; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China. Electronic address: liuguanghua@mail.tsinghua.edu.cn.
J Mech Behav Biomed Mater ; 154: 106529, 2024 Jun.
Article em En | MEDLINE | ID: mdl-38552335
ABSTRACT
Si3N4 bioceramics were fabricated using GPS and SPS method with MgO-RE2O3 (RE = La, Nd, Gd, Ho and Lu) sintering additives. The effect of sintering methods and sintering additives on the grain growth, mechanical, antimicrobial properties and color of Si3N4 bioceramics were studied. Samples sintered with GPS are composed of ß-Si3N4 and samples sintered with SPS are composed of α-Si3N4 and ß-Si3N4. The growth of ß-Si3N4 grains in samples sintered with GPS are more adequate. Samples sintered with GPS exhibit a S. aureus inactivation rate up to 98% and a bright color appearance with a hardness of about 13 GPa and a fracture toughness up to 7.5 MPa m1/2, suitable for dental implants. And samples sintered with SPS exhibit a hardness of about 17 GPa and a fracture toughness about 6 MPa m1/2.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Staphylococcus aureus / Anti-Infecciosos Idioma: En Ano de publicação: 2024 Tipo de documento: Article
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Staphylococcus aureus / Anti-Infecciosos Idioma: En Ano de publicação: 2024 Tipo de documento: Article