Journal of Inorganic Materials, Volume. 39, Issue 7, 741(2024)
Progress of Ultra-high Temperature Oxide Ceramics: Laser Additive Manufacturing and Microstructure Evolution
Figures & Tables(14)
. Principle of selective laser melting (SLM) and as-prepared oxide ceramic samples
. Principle of laser directed energy deposition (LDED) and as-prepared oxide ceramic samples
. Typical microstructure morphologies of cross/longitudinal sections of LAM fabricated oxide eutectic ceramics
. Microstructure of Al2O3/ZrO2 eutectic ceramic and corresponding crystallographic orientation[43]
. Microstructure and orientation evolution of Al2O3/YAG eutectic ceramic along deposition direction[37]
. Microstructures at top region of the Al2O3/GAP eutectic ceramics under different scanning rates[36]
. Micro-morphologies of the Al2O3/ZrO2 eutectic ceramics with different ultrasonic powers[57]
Table 1. Lasers for LAM and their characteristics[19]
View tableView in ArticleTable 1. Lasers for LAM and their characteristics[19]
Laser type CO2 laser Nd: YAG laser Yb-fiber laser Wavelength/μm 10.6 1.06 1.07 Efficiency/% 5-20 1-3 10-30 Output power/kW ~20 ~16 ~10 Beam quality factor 3-5 0.4-20 0.3-4 Preferred material Ceramic/polymer Metal Metal
Table 2. Comparison of process characteristics of SLM and LDED[32]
View tableView in ArticleTable 2. Comparison of process characteristics of SLM and LDED[32]
Process Preferred laser Power/W Building rate / (cm3·min-1) Dimensional accuracy/mm Surface roughness/μm Application SLM Nd: YAG laser/fiber laser 50-1000 1.3 0.04-0.2 7-20 High precision and small scale component LDED CO2 laser 100-3000 11.5 0.5-1.0 4-10 Large scale component
Table 4. Crystal orientation relationship of the oxide eutectic ceramics by different preparation methods
View tableView in ArticleTable 4. Crystal orientation relationship of the oxide eutectic ceramics by different preparation methods
Eutectic system Preparation method Crystal orientation relationship Al2O3/YAG/ZrO2 Laser directed energy deposition[ 43 ]Optical floating zone method[ 44 ][0001]Al2O3∥[001]YAG∥[001]ZrO2 <11¯00>Al2O3∥<001>YAG∥<001>ZrO2 Al2O3/ZrO2 Laser directed energy deposition[ 35 ]Laser floating zone method[ 45 ][112¯0]Al2O3∥[001]ZrO2 [022¯1]Al2O3∥[111]ZrO2 Al2O3/YAG Bridgman[ 46 ]Laser directed energy deposition[ 37 ][101¯0]Al2O3∥[101]YAG [101¯0]Al2O3∥[111]YAG
Table 5. Comparison of mechanical properties among different oxide ceramics prepared by different LAM technologies
View tableView in ArticleTable 5. Comparison of mechanical properties among different oxide ceramics prepared by different LAM technologies
Material Hardness/GPa Fracture toughness/(MPa·m1/2) Flexural strength/MPa Preparation method Al2O3 16 18.91 / 3.55 / 350 Sintering[ 64 ]LDED[ 65 ]ZrO2(Y2O3) 19.80 / / LDED[ 34 ]Al2O3/ZrO2 / 15.3 / 18.59 / 6.03 7.8 / 6.52 7.67/8.70 525 / 538 / / Sintering[ 66 ]DS[ 67 ]SLM[ 68 ]LDED[ 63 ]LDED (ultrasonic assisted/C fiber)[ 57 ,61 ]Al2O3/GAP 23.36 17.1 15.16 3.12 4.5 4.3 / / / DS[ 69 ]SLM[ 36 ]LDED[ 70 ]Al2O3/TiO2 16.38 3.75 212 LDED[ 47 ]Al2O3/SiO2 11.10 18.39 18.64 2.54 3.07 3.54 350 310 504 Sintering[ 71 ]LDED[ 52 ]LDED (heat treatment)[ 48 ]Al2O3/YAG 17.50 17.35 21.50 3.60 3.14 5.86 / / / DS[ 72 ]LDED[ 73 ]LDED (water cooling)[ 60 ]Al2O3/GAP/ZrO2 17.50 17.90 15.30 6.50 8.50 7.80 485 / / Sintering[ 74 ]DS[ 75 ]SLM[ 25 ]Al2O3/YAG/ZrO2 15.80 18.90 3.90 3.84 / / DS[ 76 ]LDED[ 35 ]
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Qian CHEN, Haijun SU, Hao JIANG, Zhonglin SHEN, Minghui YU, Zhuo ZHANG. Progress of Ultra-high Temperature Oxide Ceramics: Laser Additive Manufacturing and Microstructure Evolution[J]. Journal of Inorganic Materials, 2024, 39(7): 741
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Received: Dec. 5, 2023
Accepted: --
Published Online: Aug. 30, 2024
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