Super-hard “Tanghulu”: cubic BP microwire covered with amorphous SiO2 balls

Superhard materials, which are widely used in metallurgy, petroleum drilling, and mechanical processing, have become the key to the development of processing and manufacturing industry. Boron phosphide is an excellent Superhard candidate material with excellent inert, high thermostability and heat c...

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Autores principales:	Yali Liang, Xuefang Lu, Ying Ding, Wei Zheng
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Superhard “Tanghulu” Cubic BP Science (General) Q1-390 Social sciences (General) H1-99
Acceso en línea:	https://doaj.org/article/348df46f0adb4388a6e7229f291010ee
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spelling	oai:doaj.org-article:348df46f0adb4388a6e7229f291010ee2021-12-02T05:02:31ZSuper-hard “Tanghulu”: cubic BP microwire covered with amorphous SiO2 balls2405-844010.1016/j.heliyon.2021.e08300https://doaj.org/article/348df46f0adb4388a6e7229f291010ee2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2405844021024038https://doaj.org/toc/2405-8440Superhard materials, which are widely used in metallurgy, petroleum drilling, and mechanical processing, have become the key to the development of processing and manufacturing industry. Boron phosphide is an excellent Superhard candidate material with excellent inert, high thermostability and heat conductivity. However, since synthesizing BP is a hard task, studies of its basic physical properties and applications are hindered to some extent. Here, we obtained a micron-scale “Tanghulu”, in the process of synthesizing boron phosphide single crystals using high-temperature flux method. Under a special appearance, ''Tanghulu'' is a superhard BP microwire covered by melted or amorphous SiO2 and the hardness of the BP microwires is 40.16GPa. On the basis of a comprehensive material analysis, we established the formation mechanism of this Superhard “Tanghulu” as follows: during the heating process with continuous high temperature, SiO2 molecules on the wall of quartz tube escape and diffuse freely and adhere to the boron phosphide rod-shaped single crystal, which will aggregate then under the effect of surface tension to form an isotropic spherical amorphous SiO2 and form the “Tanghulu” finally. Our work can help to broaden the understanding of micro-scale materials.Yali LiangXuefang LuYing DingWei ZhengElsevierarticleSuperhard“Tanghulu”Cubic BPScience (General)Q1-390Social sciences (General)H1-99ENHeliyon, Vol 7, Iss 11, Pp e08300- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Superhard “Tanghulu” Cubic BP Science (General) Q1-390 Social sciences (General) H1-99
spellingShingle	Superhard “Tanghulu” Cubic BP Science (General) Q1-390 Social sciences (General) H1-99 Yali Liang Xuefang Lu Ying Ding Wei Zheng Super-hard “Tanghulu”: cubic BP microwire covered with amorphous SiO2 balls
description	Superhard materials, which are widely used in metallurgy, petroleum drilling, and mechanical processing, have become the key to the development of processing and manufacturing industry. Boron phosphide is an excellent Superhard candidate material with excellent inert, high thermostability and heat conductivity. However, since synthesizing BP is a hard task, studies of its basic physical properties and applications are hindered to some extent. Here, we obtained a micron-scale “Tanghulu”, in the process of synthesizing boron phosphide single crystals using high-temperature flux method. Under a special appearance, ''Tanghulu'' is a superhard BP microwire covered by melted or amorphous SiO2 and the hardness of the BP microwires is 40.16GPa. On the basis of a comprehensive material analysis, we established the formation mechanism of this Superhard “Tanghulu” as follows: during the heating process with continuous high temperature, SiO2 molecules on the wall of quartz tube escape and diffuse freely and adhere to the boron phosphide rod-shaped single crystal, which will aggregate then under the effect of surface tension to form an isotropic spherical amorphous SiO2 and form the “Tanghulu” finally. Our work can help to broaden the understanding of micro-scale materials.
format	article
author	Yali Liang Xuefang Lu Ying Ding Wei Zheng
author_facet	Yali Liang Xuefang Lu Ying Ding Wei Zheng
author_sort	Yali Liang
title	Super-hard “Tanghulu”: cubic BP microwire covered with amorphous SiO2 balls
title_short	Super-hard “Tanghulu”: cubic BP microwire covered with amorphous SiO2 balls
title_full	Super-hard “Tanghulu”: cubic BP microwire covered with amorphous SiO2 balls
title_fullStr	Super-hard “Tanghulu”: cubic BP microwire covered with amorphous SiO2 balls
title_full_unstemmed	Super-hard “Tanghulu”: cubic BP microwire covered with amorphous SiO2 balls
title_sort	super-hard “tanghulu”: cubic bp microwire covered with amorphous sio2 balls
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/348df46f0adb4388a6e7229f291010ee
work_keys_str_mv	AT yaliliang superhardtanghulucubicbpmicrowirecoveredwithamorphoussio2balls AT xuefanglu superhardtanghulucubicbpmicrowirecoveredwithamorphoussio2balls AT yingding superhardtanghulucubicbpmicrowirecoveredwithamorphoussio2balls AT weizheng superhardtanghulucubicbpmicrowirecoveredwithamorphoussio2balls
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Super-hard “Tanghulu”: cubic BP microwire covered with amorphous SiO2 balls

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