Room-temperature deformation of single crystals of ZrB2 and TiB2 with the hexagonal AlB2 structure investigated by micropillar compression

Abstract The plastic deformation behavior of single crystals of two transition-metal diborides, ZrB2 and TiB2 with the AlB2 structure has been investigated at room temperature as a function of crystal orientation and specimen size by micropillar compression tests. Although plastic flow is not observ...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Zhenghao Chen, Bhaskar Paul, Sanjib Majumdar, Norihiko L. Okamoto, Kyosuke Kishida, Haruyuki Inui, Shigeki Otani
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2be8b17fafcd47afb77de93a2b188875
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:2be8b17fafcd47afb77de93a2b188875
record_format	dspace
spelling	oai:doaj.org-article:2be8b17fafcd47afb77de93a2b1888752021-12-02T18:30:45ZRoom-temperature deformation of single crystals of ZrB2 and TiB2 with the hexagonal AlB2 structure investigated by micropillar compression10.1038/s41598-021-93693-92045-2322https://doaj.org/article/2be8b17fafcd47afb77de93a2b1888752021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93693-9https://doaj.org/toc/2045-2322Abstract The plastic deformation behavior of single crystals of two transition-metal diborides, ZrB2 and TiB2 with the AlB2 structure has been investigated at room temperature as a function of crystal orientation and specimen size by micropillar compression tests. Although plastic flow is not observed at all for their bulk single crystals at room temperature, plastic flow is successfully observed at room temperature by the operation of slip on {1 $${\bar{1}}$$ 1 ¯ 00}<11 $${\bar{2}}$$ 2 ¯ 3> in ZrB2 and by the operation of slip on {1 $${\bar{1}}$$ 1 ¯ 00}<0001> and {1 $${\bar{1}}$$ 1 ¯ 00}<11 $${\bar{2}}$$ 2 ¯ 0> in TiB2. Critical resolve shear stress values at room temperature are very high, exceeding 1 GPa for all observed slip systems; 3.01 GPa for {1 $${\bar{1}}$$ 1 ¯ 00}<11 $${\bar{2}}$$ 2 ¯ 3> slip in ZrB2 and 1.72 GPa and 5.17 GPa, respectively for {1 $${\bar{1}}$$ 1 ¯ 00}<0001> and {1 $${\bar{1}}$$ 1 ¯ 00}<11 $${\bar{2}}$$ 2 ¯ 0> slip in TiB2. The identified operative slip systems and their CRSS values are discussed in comparison with those identified in the corresponding bulk single crystals at high temperatures and those inferred from micro-hardness anisotropy in the early studies.Zhenghao ChenBhaskar PaulSanjib MajumdarNorihiko L. OkamotoKyosuke KishidaHaruyuki InuiShigeki OtaniNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Zhenghao Chen Bhaskar Paul Sanjib Majumdar Norihiko L. Okamoto Kyosuke Kishida Haruyuki Inui Shigeki Otani Room-temperature deformation of single crystals of ZrB2 and TiB2 with the hexagonal AlB2 structure investigated by micropillar compression
description	Abstract The plastic deformation behavior of single crystals of two transition-metal diborides, ZrB2 and TiB2 with the AlB2 structure has been investigated at room temperature as a function of crystal orientation and specimen size by micropillar compression tests. Although plastic flow is not observed at all for their bulk single crystals at room temperature, plastic flow is successfully observed at room temperature by the operation of slip on {1 $${\bar{1}}$$ 1 ¯ 00}<11 $${\bar{2}}$$ 2 ¯ 3> in ZrB2 and by the operation of slip on {1 $${\bar{1}}$$ 1 ¯ 00}<0001> and {1 $${\bar{1}}$$ 1 ¯ 00}<11 $${\bar{2}}$$ 2 ¯ 0> in TiB2. Critical resolve shear stress values at room temperature are very high, exceeding 1 GPa for all observed slip systems; 3.01 GPa for {1 $${\bar{1}}$$ 1 ¯ 00}<11 $${\bar{2}}$$ 2 ¯ 3> slip in ZrB2 and 1.72 GPa and 5.17 GPa, respectively for {1 $${\bar{1}}$$ 1 ¯ 00}<0001> and {1 $${\bar{1}}$$ 1 ¯ 00}<11 $${\bar{2}}$$ 2 ¯ 0> slip in TiB2. The identified operative slip systems and their CRSS values are discussed in comparison with those identified in the corresponding bulk single crystals at high temperatures and those inferred from micro-hardness anisotropy in the early studies.
format	article
author	Zhenghao Chen Bhaskar Paul Sanjib Majumdar Norihiko L. Okamoto Kyosuke Kishida Haruyuki Inui Shigeki Otani
author_facet	Zhenghao Chen Bhaskar Paul Sanjib Majumdar Norihiko L. Okamoto Kyosuke Kishida Haruyuki Inui Shigeki Otani
author_sort	Zhenghao Chen
title	Room-temperature deformation of single crystals of ZrB2 and TiB2 with the hexagonal AlB2 structure investigated by micropillar compression
title_short	Room-temperature deformation of single crystals of ZrB2 and TiB2 with the hexagonal AlB2 structure investigated by micropillar compression
title_full	Room-temperature deformation of single crystals of ZrB2 and TiB2 with the hexagonal AlB2 structure investigated by micropillar compression
title_fullStr	Room-temperature deformation of single crystals of ZrB2 and TiB2 with the hexagonal AlB2 structure investigated by micropillar compression
title_full_unstemmed	Room-temperature deformation of single crystals of ZrB2 and TiB2 with the hexagonal AlB2 structure investigated by micropillar compression
title_sort	room-temperature deformation of single crystals of zrb2 and tib2 with the hexagonal alb2 structure investigated by micropillar compression
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2be8b17fafcd47afb77de93a2b188875
work_keys_str_mv	AT zhenghaochen roomtemperaturedeformationofsinglecrystalsofzrb2andtib2withthehexagonalalb2structureinvestigatedbymicropillarcompression AT bhaskarpaul roomtemperaturedeformationofsinglecrystalsofzrb2andtib2withthehexagonalalb2structureinvestigatedbymicropillarcompression AT sanjibmajumdar roomtemperaturedeformationofsinglecrystalsofzrb2andtib2withthehexagonalalb2structureinvestigatedbymicropillarcompression AT norihikolokamoto roomtemperaturedeformationofsinglecrystalsofzrb2andtib2withthehexagonalalb2structureinvestigatedbymicropillarcompression AT kyosukekishida roomtemperaturedeformationofsinglecrystalsofzrb2andtib2withthehexagonalalb2structureinvestigatedbymicropillarcompression AT haruyukiinui roomtemperaturedeformationofsinglecrystalsofzrb2andtib2withthehexagonalalb2structureinvestigatedbymicropillarcompression AT shigekiotani roomtemperaturedeformationofsinglecrystalsofzrb2andtib2withthehexagonalalb2structureinvestigatedbymicropillarcompression
_version_	1718377966679883776

Room-temperature deformation of single crystals of ZrB2 and TiB2 with the hexagonal AlB2 structure investigated by micropillar compression

Ejemplares similares