[특허]Method for producing nanocrystalline multicomponent and multiphase materials

[미국특허] Method for producing nanocrystalline multicomponent and multiphase materials 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B22F-001/00 B22F-009/00
출원번호	US-0801672 (1997-02-18)
발명자 / 주소	Eastman Jeffrey A. Rittner Mindy N. Youngdahl Carl J. Weertman Julia R.
출원인 / 주소	The United States of America as represented by the Department of Energy
대리인 / 주소	Alwan
인용정보	피인용 횟수 : 54 인용 특허 : 3

초록 ▼

A process for producing multi-component and multiphase nanophase materials is provided wherein a plurality of elements are vaporized in a controlled atmosphere, so as to facilitate thorough mixing, and then condensing and consolidating the elements. The invention also provides for a multicomponent and multiphase nanocrystalline material of specified elemental and phase composition having component grain sizes of between approximately 1 nm and 100 nm. This material is a single element in combination with a binary compound. In more specific embodiments, the single element in this material can be a transition metal element, a non-transition metal element, a semiconductor, or a semi-metal, and the binary compound in this material can be an intermetallic, an oxide, a nitride, a hydride, a chloride, or other compound.

대표청구항 ▼

[ The embodiment of the invention in which an exclusive property or privilege is claimed is defined as follows:] [1.] A method for producing a multicomponent nanocrystalline material comprising:a). supplying a controlled atmosphere containing a reactive gas and an inert gas;b). simultaneously vaporizing elements selected from the group consisting of titanium, iron, cobalt, nickel, copper, zirconium, palladium, silver, platinum, gold, zinc, tungsten, molybdenum, chromium, magnesium, manganese, iridium, niobium, aluminum, silicon, germanium and combinations thereof by electron beam heating in the controlled atmosphere to react selected elements with the reactive gas and thereby provide a reaction product;(c). condensing the now mixed reaction product and elements to form a multicomponent, nanocrystalline powder;(d). removing the powder from the controlled atmosphere; and(e). compressing the powder thereby forming a dense solid of multicomponent, nanocrystalline material.

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[미국특허] Method for producing nanocrystalline multicomponent and multiphase materials 원문보기