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

页数：8

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