Title:
DIAMOND COMPOSITE PHASE MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/197471
Kind Code:
A1
Abstract:
Provided are a diamond composite phase material and a preparation method therefor. Onion carbon is used as a raw material, and a novel diamond composite phase bulk material containing multiple types of diamond phases of 3C, 2H, 4H, 6H, 8H, 10H, 9R, 15R and 21R is prepared by means of a high-temperature and high-pressure synthesis method. Two or more types of diamond phases of 2H, 3C, 4H, 6H, 8H, 9R, 10H, 15R and 21R can be found in the crystal grains of the bulk material. Among them, the 3C type diamond has an ultra-fine nano-twin crystal structure with a twin crytal width of 1-15nm. The diamond composite phase bulk material has an internal grain size of 2-80 nm, a Vickers hardness of 150-260 GPa, and a fracture toughness of 12-30 MPa m1/2. The diamond composite phase bulk material has broad applications in the fields of precision and ultra-precision machining, wire drawing dies, abrasives and special optical components.
Inventors:
TIAN YONGJUN (CN)
XU BO (CN)
ZHOU XIANGFENG (CN)
HU WENTAO (CN)
GAO YUFEI (CN)
LI ZIHE (CN)
YING PAN (CN)
LIU XIAOXIAO (CN)
YU DONGLI (CN)
HE JULONG (CN)
LIU ZHONGYUAN (CN)
NIE ANMIN (CN)
WANG LIN (CN)
GAO GUOYING (CN)
CHEN JUNYUN (CN)
ZHAO ZHISHENG (CN)
XU BO (CN)
ZHOU XIANGFENG (CN)
HU WENTAO (CN)
GAO YUFEI (CN)
LI ZIHE (CN)
YING PAN (CN)
LIU XIAOXIAO (CN)
YU DONGLI (CN)
HE JULONG (CN)
LIU ZHONGYUAN (CN)
NIE ANMIN (CN)
WANG LIN (CN)
GAO GUOYING (CN)
CHEN JUNYUN (CN)
ZHAO ZHISHENG (CN)
Application Number:
PCT/CN2021/085261
Publication Date:
October 07, 2021
Filing Date:
April 02, 2021
Export Citation:
Assignee:
UNIV YANSHAN (CN)
International Classes:
B01J3/06; C01B32/25; C01B32/26; C01B32/15; C01B32/18
Foreign References:
| CN104209062A | 2014-12-17 | |||
| CN102712478A | 2012-10-03 | |||
| JPH06121923A | 1994-05-06 | |||
| CN103382025A | 2013-11-06 | |||
| CN1335420A | 2002-02-13 |
Other References:
V.N. DENISOV; B.N. MAVRIN; N.R. SEREBRYANAYA; G.A. DUBITSKY; V.V. AKSENENKOV; A.N. KIRICHENKO; N.V. KUZMIN; B.A. KULNITSKIY; I.A. : "First-principles, UV Raman, X-ray diffraction and TEM study of the structure and lattice dynamics of the diamond lonsdaleite system", DIAMOND AND RELATED MATERIALS, ELSEVIER SCIENCE PUBLISHERS , AMSTERDAM, NL, vol. 20, no. 7, NL, pages 951 - 953, XP028245191, ISSN: 0925-9635, DOI: 10.1016/j.diamond.2011.05.013
YANG BO, XIANGHE PENG, YINBO ZHAO, DEQIANG YIN, TAO FU, CHENG HUANG: "Superior mechanical and thermal properties than diamond: diamond/lonsdaleite biphasic structure", JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, vol. 48, 1 July 2020 (2020-07-01), pages 114 - 122, XP055855543, DOI: 10.1016/j.jmst.2020.03.005
YUE YONGHAI; GAO YUFEI; HU WENTAO; XU BO; WANG JING; ZHANG XUEJIAO; ZHANG QI; WANG YANBIN; GE BINGHUI; YANG ZHENYU; LI ZIHE; YING : "Hierarchically structured diamond composite with exceptional toughness", NATURE, MACMILLAN JOURNALS LTD., ETC., LONDON, vol. 582, no. 7812, 17 June 2020 (2020-06-17), London, pages 370 - 374, XP037168434, ISSN: 0028-0836, DOI: 10.1038/s41586-020-2361-2
YANG BO, XIANGHE PENG, YINBO ZHAO, DEQIANG YIN, TAO FU, CHENG HUANG: "Superior mechanical and thermal properties than diamond: diamond/lonsdaleite biphasic structure", JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, vol. 48, 1 July 2020 (2020-07-01), pages 114 - 122, XP055855543, DOI: 10.1016/j.jmst.2020.03.005
YUE YONGHAI; GAO YUFEI; HU WENTAO; XU BO; WANG JING; ZHANG XUEJIAO; ZHANG QI; WANG YANBIN; GE BINGHUI; YANG ZHENYU; LI ZIHE; YING : "Hierarchically structured diamond composite with exceptional toughness", NATURE, MACMILLAN JOURNALS LTD., ETC., LONDON, vol. 582, no. 7812, 17 June 2020 (2020-06-17), London, pages 370 - 374, XP037168434, ISSN: 0028-0836, DOI: 10.1038/s41586-020-2361-2
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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