Numerical modeling of temperature distribution and its influence on microstructure in laser-sintered bulk ceramics

被引：0
|
作者：
Nascimento, M. J. M. [1 ]
Santos, J. C. A. [1 ,2 ]
Hernandes, A. C. [3 ]
Silva, R. S. [1 ]
机构：
[1] Univ Fed Sergipe, BR-49100000 Sao Cristovao, Sergipe, Brazil
[2] Univ Fed Reconcavo Bahia, BR-44380000 Cruz Das Almas, BA, Brazil
[3] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
来源：
MRS ADVANCES | 2025年
基金：
巴西圣保罗研究基金会;
关键词：
CO2-LASER; EMISSION;
D O I：
10.1557/s43580-025-01217-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Laser sintering of bulk ceramics has been reported as an alternative method to sintering ceramic materials using a CO2 laser as heating source. However, no theoretical description has been proposed so far. Thus, this work reports the laser sintering of bulk ceramic materials from a theoretical viewpoint. Qualitative descriptions of the final sintering stage were described via numerical simulation of the heat conduction equation in a linear approximation and considering a Gaussian profile heat source. Discussions on numerical solutions for specific cases of the heat conduction equation are provided, and a semi-quantitative comparison with the experimental results obtained by the laser sintering of the Ba0.77Ca0.23TiO3 (BCT) ceramics is realized.
引用
收藏
页数：8
相关论文
共 50 条
  • [41] Influence of forming methods on the microstructure of 3YSZ flash-sintered ceramics
    Lavagnini, Isabela R.
    Campos, Joao, V
    Jesus, Lilian M.
    Pallone, Eliria M. J. A.
    MATERIALIA, 2022, 22
  • [42] Porous process and its effects on the microstructure and properties of SiC ceramics sintered with Mg additive
    Li, Jingkun
    Ren, Xueping
    Zhang, Yanling
    Hou, Hongliang
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2020, 9 (01): : 33 - 41
  • [43] Influence of laser energy distribution on laser surface microstructure processing
    Xu, Xiaofang
    Yang, Xiaohan
    Li, Jingbo
    Pan, Sen
    Bi, Yong
    Gao, Yongfeng
    OPTIK, 2019, 199
  • [44] Effect of initial microstructure on final intergranular phase distribution in liquid-phase-sintered ceramics
    Ackler, HD
    Chiang, YM
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1999, 82 (01) : 183 - 189
  • [45] Effect of sintering atmosphere and carbon content on the densification and microstructure of laser-sintered M2 high-speed steel powder
    Asgharzadeh, H
    Simchi, A
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 403 (1-2): : 290 - 298
  • [46] NUMERICAL MODELING OF THE TEMPERATURE DISTRIBUTION IN TABULAR ICEBERGS
    LOSET, S
    COLD REGIONS SCIENCE AND TECHNOLOGY, 1993, 21 (02) : 103 - 115
  • [47] Microstructure and luminescence properties of the high pressure high temperature sintered AlN-TiN ceramics
    Kudyakova, Valeriya S.
    Leonidov, Ivan I.
    Chaikin, Dmitry V.
    Shishkin, Roman A.
    Zamyatin, Dmitry A.
    Weinstein, Ilya A.
    CERAMICS INTERNATIONAL, 2021, 47 (12) : 16876 - 16881
  • [48] Microstructure and mechanical properties of direct metal laser-sintered 15-5PH steel with different solution annealing heat treatments
    Alafaghani, Ala'aldin
    Qattawi, Ala
    Jaman, Md Shah
    Ablat, Muhammad Ali
    INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2019, 105 (7-8): : 3499 - 3520
  • [49] INFLUENCE OF ANNEALING TEMPERATURE ON THE MICROSTRUCTURE AND MECHANICAL-BEHAVIOR OF SINTERED OR MELTED MOLYBDENUM
    SOUQUET, S
    GERARD, C
    TRAVERSE, JP
    JOURNAL OF MATERIALS SCIENCE LETTERS, 1995, 14 (05) : 305 - 310
  • [50] Numerical modeling of temperature distribution in a high temperature sintering furnace
    Akkoyunlu, Turker
    Uzun, Ibrahim
    Tan, Huesamettin
    PAMUKKALE UNIVERSITY JOURNAL OF ENGINEERING SCIENCES-PAMUKKALE UNIVERSITESI MUHENDISLIK BILIMLERI DERGISI, 2024, 30 (05): : 595 - 601
12345