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.
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页数：8
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