Influence of sintering parameters on the microstructure and mechanical properties of nano-sized 3Y-TZP ceramics (2021)
- Authors:
- Autor USP: RODRIGUES JUNIOR, DURVAL - EEL
- Unidade: EEL
- DOI: 10.1590/0366-69132021673812908
- Assunto: SINTERIZAÇÃO
- Keywords: 3Y-TZP; nanosized powder; sintering; microstructure; t->m transformation toughening mechanism
- Agências de fomento:
- Language: Inglês
- Abstract: The fracture toughness of 3Y-TZP ceramics obtained from a nanocrystalline powder with an optimized microstructure and highly transformable tetragonal grains was investigated. Samples of ZrO2 -3 mol% Y2 O3 were sintered at temperatures between 1250 and 1400 °C, with isothermal holding times of up to 16 h. Samples sintered at 1250 °C exhibited relative densities ranging between 92% and 98%, which increased with increasing isothermal duration, while samples sintered at 1300, 1350, or 1400 °C achieved densification higher than 98% for all isothermal treatments. Crystallographic analysis indicated the presence of a highly transformable ZrO2 -tetragonal phase (c/a√2= 1.0148-1.0154) for all conditions studied. The average grain size ranged from 0.18±0.04 mm (1250 °C-0 h) to 0.64±0.08 mm (1400 °C-16 h), indicating activation energy of 141.3 kJ/mol for grain growth and a growth exponent of 2.8. Both Vickers hardness (1025 to 1300 HV) and fracture toughness (4.0 to 7.8 MPa.m1/2) increased with increasing sintering temperature and time due to increased densification, reduced porosity, and maintenance of potentially high fracture toughness by the t m phase transformation.
- Imprenta:
- Publisher: ABC
- Publisher place: São Paulo-SP
- Date published: 2021
- Source:
- Este periódico é de acesso aberto
- Este artigo é de acesso aberto
- URL de acesso aberto
- Cor do Acesso Aberto: gold
- Licença: cc-by-nc
-
ABNT
PALMEIRA, Alexandre Alvarenga et al. Influence of sintering parameters on the microstructure and mechanical properties of nano-sized 3Y-TZP ceramics. Cerâmica, v. 67, p. 14-22, 2021Tradução . . Disponível em: https://doi.org/10.1590/0366-69132021673812908. Acesso em: 30 dez. 2025. -
APA
Palmeira, A. A., Cangani, M. P., Rodrigues Jr, D., Strecker, K., & Santos, C. dos. (2021). Influence of sintering parameters on the microstructure and mechanical properties of nano-sized 3Y-TZP ceramics. Cerâmica, 67, 14-22. doi:10.1590/0366-69132021673812908 -
NLM
Palmeira AA, Cangani MP, Rodrigues Jr D, Strecker K, Santos C dos. Influence of sintering parameters on the microstructure and mechanical properties of nano-sized 3Y-TZP ceramics [Internet]. Cerâmica. 2021 ;67 14-22.[citado 2025 dez. 30 ] Available from: https://doi.org/10.1590/0366-69132021673812908 -
Vancouver
Palmeira AA, Cangani MP, Rodrigues Jr D, Strecker K, Santos C dos. Influence of sintering parameters on the microstructure and mechanical properties of nano-sized 3Y-TZP ceramics [Internet]. Cerâmica. 2021 ;67 14-22.[citado 2025 dez. 30 ] Available from: https://doi.org/10.1590/0366-69132021673812908 - Analysis of low cost Physics experiment using the software Tracker
- Development of High-Performance Superconducting Materials for Practical Applications
- Musicalização Infantil - Objetos de Aprendizagem - Elementos Rítmicos - Série 1
- Optimization of Properties and Characteristics of Superconducting Materials for Applications
- Caracterização da Hidroxiapatita obtida de osso bovino de regiões diferentes para retenção de chumbo
- Effect of Isothermal on the Heat Treatment of Ag/Bi2212 Superconducting Tapes
- Nondestructive analysis of Bi2212 bulk superconducting ceramics in the C-axis direction
- Musicalização Infantil - Objetos de Aprendizagem - Elementos Melódicos - Série 1
- Tendências sustentáveis no uso de compósitos poliméricos para aplicação na indústria automotiva: uma proposta de reutilização do lixo marítimo com reforço de fibras naturais
- A new proposal of Terminations for HTS Power Cables
Informações sobre o DOI: 10.1590/0366-69132021673812908 (Fonte: oaDOI API)
How to cite
A citação é gerada automaticamente e pode não estar totalmente de acordo com as normas
