Polymerization and phase diagram of solid C70 after high-pressure-high-temperature treatment

被引：41

作者：

Blank, VD ^{[1
]}

Serebryanaya, NR

Dubitsky, GA

Buga, SG

Denisov, VN

Mavrin, BN

Ivlev, AN

Sulyanov, SN

Lvova, NA

机构：

[1] Russian Acad Sci, Inst Spect, Troitsk 142092, Moscow Region, Russia

[2] Minist Sci & Technol, Res Ctr Superhard Mat, Troitsk 142092, Moscow Region, Russia

[3] Russian Acad Sci, Inst Crystallog, Moscow 117333, Russia

来源：

PHYSICS LETTERS A | 1998年 / 248卷 / 5-6期

关键词：

D O I：

10.1016/S0375-9601(98)00630-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

For the first time investigations of structure and physical properties of C-70 after treatment at 4 less than or equal to P less than or equal to 12.5 GPa and 300 less than or equal to T less than or equal to 1770 K were carried out by X-ray, Raman and infrared spectroscopy. The results are plotted in a (P,T) diagram. The new superhard 3D-polymerized tetragonal phase has been found at P greater than or equal to 9.5 GPa. The superhard disordered state of samples produced from C-70 at 12.5 GPa with a hardness close to that of (100)-face diamond has also been found. (C) 1998 Elsevier Science B.V.

引用

页码：415 / 422

页数：8

共 14 条

[1] ULTRAHARD AND SUPERHARD CARBON PHASES PRODUCED FROM C-60 BY HEATING AT HIGH-PRESSURE - STRUCTURAL AND RAMAN STUDIES [J].

BLANK, VD ;

BUGA, SG ;

SEREBRYANAYA, NR ;

DENISOV, VN ;

DUBITSKY, GA ;

IVLEV, AN ;

MAVRIN, BN ;

POPOV, MY .

PHYSICS LETTERS A, 1995, 205 (2-3) :208-216

[2] Hard disordered phases produced at high-pressure-high-temperature treatment of C60 [J].

Blank, VD ;

Denisov, VN ;

Ivlev, AN ;

Mavrin, BN ;

Serebryanaya, NR ;

Dubitsky, GA ;

Sulyanov, SN ;

Popov, MY ;

Lvova, NA ;

Buga, SG ;

Kremkova, GN .

CARBON, 1998, 36 (09) :1263-1267

[3] High-pressure polymerized phases of C60 [J].

Blank, VD ;

Buga, SG ;

Dubitsky, GA ;

Serebryanaya, NR ;

Popov, MY ;

Sundqvist, B .

CARBON, 1998, 36 (04) :319-343

[4] Phase transformations in solid C-60 at high-pressure-high-temperature treatment and the structure of 3D polymerized fullerites [J].

Blank, VD ;

Buga, SG ;

Serebryanaya, NR ;

Dubitsky, GA ;

Sulyanov, SN ;

Popov, MY ;

Denisov, VN ;

Ivlev, AN ;

Mavrin, BN .

PHYSICS LETTERS A, 1996, 220 (1-3) :149-157

[5] INDEXING OF POWDER DIFFRACTION PATTERNS FOR LOW-SYMMETRY LATTICES BY THE SUCCESSIVE DICHOTOMY METHOD [J].

BOULTIF, A ;

LOUER, D .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1991, 24 (pt 6) :987-993

[6] PHOTOCHEMICAL TRANSFORMATION OF C-60 AND C-70 FILMS [J].

EKLUND, PC ;

RAO, AM ;

ZHOU, P ;

WANG, Y .

THIN SOLID FILMS, 1995, 257 (02) :185-203

[7] Structural and spectroscopic properties of pressure-induced C-70 polymers [J].

Iwasa, Y ;

Furudate, T ;

Fukawa, T ;

Ozaki, T ;

Mitani, T ;

Yagi, T ;

Arima, T .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1997, 64 (03) :251-256

[8] ORIENTATIONAL ORDERING IN SOLID C70 UNDER HIGH-PRESSURE [J].

KAWAMURA, H ;

KOBAYASHI, M ;

AKAHAMA, Y ;

SHINOHARA, H ;

SATO, H ;

SAITO, Y .

SOLID STATE COMMUNICATIONS, 1992, 83 (08) :563-565

[9] Pressure and temperature diagram of polymerized fullerite [J].

Marques, L ;

Hodeau, JL ;

NunezRegueiro, M ;

Perroux, M .

PHYSICAL REVIEW B, 1996, 54 (18) :12633-12636

[10] Pressure induced dimerisation of C-70 [J].

Premila, M ;

Sundar, CS ;

Sahu, PC ;

Bharathi, A ;

Hariharan, Y ;

Muthu, DVS ;

Sood, AK .

SOLID STATE COMMUNICATIONS, 1997, 104 (04) :237-242

← 1 2 →