Journal article
Additive Manufacturing of Reactive In Situ Zr Based Ultra-High Temperature Ceramic Composites
JOM (1989), Vol.68(3), pp.822-830
03/2016
Handle:
https://hdl.handle.net/2376/102282
Abstract
Reactive in situ multi-material additive manufacturing of ZrB2-based ultra-high-temperature ceramics in a Zr metal matrix was demonstrated using LENS™. Sound metallurgical bonding was achieved between the Zr metal and Zr-BN composites with Ti6Al4V substrate. Though the feedstock Zr power had α phase, LENS™ processing of the Zr powder and Zr-BN premix powder mixture led to the formation of some β phase of Zr. Microstructure of the Zr-BN composite showed primary grains of zirconium diboride phase in zirconium metal matrix. The presence of ZrB2 ceramic phase was confirmed by X-ray diffraction (XRD) analysis. Hardness of pure Zr was measured as 280 ± 12 HV and, by increasing the BN content in the feedstock, the hardness was found to increase. In Zr-5%BN composite, the hardness was 421 ± 10 HV and the same for Zr-10%BN composite was 562 ± 10 HV. It is envisioned that such multi-materials additive manufacturing will enable products in the future that cannot be manufactured using traditional approaches particularly in the areas of high-temperature metal–ceramic composites with compositional and functional gradation.
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Details
- Title
- Additive Manufacturing of Reactive In Situ Zr Based Ultra-High Temperature Ceramic Composites
- Creators
- Himanshu Sahasrabudhe - 0000 0001 2157 6568 grid.30064.31 W. M. Keck Biomedical Materials Research Center, School of Mechanical & Materials Engineering Washington State University Pullman WA 99164-2920 USAAmit Bandyopadhyay - 0000 0001 2157 6568 grid.30064.31 W. M. Keck Biomedical Materials Research Center, School of Mechanical & Materials Engineering Washington State University Pullman WA 99164-2920 USA
- Publication Details
- JOM (1989), Vol.68(3), pp.822-830
- Academic Unit
- Mechanical and Materials Engineering, School of
- Publisher
- Springer US; New York
- Identifiers
- 99900546522001842
- Language
- English
- Resource Type
- Journal article