Preparation and Characterization of Ti-Based Bulk Metallic Glass Composites
博士 === 國立臺灣海洋大學 === 材料工程研究所 === 94 === In this study, Ti-based bulk metallic glass (BMG) composite powders reinforced with different volume fractions of Ta, W, WC, SiC or Al2O3 particles were prepared by mechanical alloying process. The bulk metallic glass composite with submicron W, WC, SiC or Al2O...
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ndltd-TW-094NTOU51590022016-06-01T04:25:07Z http://ndltd.ncl.edu.tw/handle/54775740960756259055 Preparation and Characterization of Ti-Based Bulk Metallic Glass Composites 鈦基塊狀金屬玻璃複合材料之製備與特性研究 I-Kuan Cheng 鄭義冠 博士 國立臺灣海洋大學 材料工程研究所 94 In this study, Ti-based bulk metallic glass (BMG) composite powders reinforced with different volume fractions of Ta, W, WC, SiC or Al2O3 particles were prepared by mechanical alloying process. The bulk metallic glass composite with submicron W, WC, SiC or Al2O3 particles homogeneously embedded in a highly dense nanocrystalline/amorphous matrix was successfully prepared by vacuum hot pressing the as-milled Ti50Cu28Ni15Sn7 metallic glass composite powders at 723 K under a pressure of 1.2 GPa. The structure and thermal stability of BMG composites were examined with XRD, DSC, DTA and TEM. (DSC analyses showed that neither the thermodynamics nor the kinetics of the Ti-base alloys was affected significantly by the WC, SiC or Al2O3 addition. Bulk Ti-based metallic glass composite with the diameter of 10 mm and the thickness of 4 mm was successfully prepared by vacuum hot pressing. In hardness measurement, when the ratio of WC was increased to 12vol.%, the hardness was raised from 6.2 GPa to 9.23 GPa. Furthermore the compressive test was used to discussed the mechanical property of Ti50Cu28Ni15Sn7 metallic glass composite. Pee-Yew Lee 李丕耀 2005 學位論文 ; thesis 180 zh-TW |
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博士 === 國立臺灣海洋大學 === 材料工程研究所 === 94 === In this study, Ti-based bulk metallic glass (BMG) composite powders reinforced with different volume fractions of Ta, W, WC, SiC or Al2O3 particles were prepared by mechanical alloying process. The bulk metallic glass composite with submicron W, WC, SiC or Al2O3 particles homogeneously embedded in a highly dense nanocrystalline/amorphous matrix was successfully prepared by vacuum hot pressing the as-milled Ti50Cu28Ni15Sn7 metallic glass composite powders at 723 K under a pressure of 1.2 GPa. The structure and thermal stability of BMG composites were examined with XRD, DSC, DTA and TEM. (DSC analyses showed that neither the thermodynamics nor the kinetics of the Ti-base alloys was affected significantly by the WC, SiC or Al2O3 addition. Bulk Ti-based metallic glass composite with the diameter of 10 mm and the thickness of 4 mm was successfully prepared by vacuum hot pressing. In hardness measurement, when the ratio of WC was increased to 12vol.%, the hardness was raised from 6.2 GPa to 9.23 GPa. Furthermore the compressive test was used to discussed the mechanical property of Ti50Cu28Ni15Sn7 metallic glass composite.
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author2 |
Pee-Yew Lee |
author_facet |
Pee-Yew Lee I-Kuan Cheng 鄭義冠 |
author |
I-Kuan Cheng 鄭義冠 |
spellingShingle |
I-Kuan Cheng 鄭義冠 Preparation and Characterization of Ti-Based Bulk Metallic Glass Composites |
author_sort |
I-Kuan Cheng |
title |
Preparation and Characterization of Ti-Based Bulk Metallic Glass Composites |
title_short |
Preparation and Characterization of Ti-Based Bulk Metallic Glass Composites |
title_full |
Preparation and Characterization of Ti-Based Bulk Metallic Glass Composites |
title_fullStr |
Preparation and Characterization of Ti-Based Bulk Metallic Glass Composites |
title_full_unstemmed |
Preparation and Characterization of Ti-Based Bulk Metallic Glass Composites |
title_sort |
preparation and characterization of ti-based bulk metallic glass composites |
publishDate |
2005 |
url |
http://ndltd.ncl.edu.tw/handle/54775740960756259055 |
work_keys_str_mv |
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