Dilatometry of ball milled nickel nano powder during NonIsothermal sintering

被引：3

作者：

Panigrahi, B. B. ^{[1
]}

Das, K.

Godkhindi, M. M.

机构：

[1] Korea Inst Stand & Sci, Div Metrol Emerging Technol, Taejon 305340, South Korea

[2] Indian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, India

来源：

SCIENCE OF SINTERING | 2007年 / 39卷 / 01期

关键词：

sintering; dilatometry; diffusion; grain growth;

D O I：

10.2298/SOS0701025P

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This work attempts to evaluate the sintering mechanisms of ball milled nanocrystalline nickel during nonisothermal heating. Samples showed a sintered density of 91.2% (theoretical) and grain growth up to 414 nm at 1273K. The activation energies of 12.4, 32.0 and 51.6 kJ/mol were found for viscous flow, lattice diffusion and grain boundary diffusion mechanisms respectively. Sintering was found to be controlled by interface reactions involving surface and grain boundary diffusions.

引用

页码：25 / 29

页数：5

共 11 条

[1]

ANDRIEVSKI RA, 1994, INT J POWDER METALL, V30, P59

[2] Diffusion in nanocrystalline nickel [J].

Bokstein, BS ;

Brose, HD ;

Trusov, LI ;

Khvostantseva, TP .

NANOSTRUCTURED MATERIALS, 1995, 6 (5-8) :873-876

[3] USE OF THE VOIGT FUNCTION IN A SINGLE-LINE METHOD FOR THE ANALYSIS OF X-RAY-DIFFRACTION LINE BROADENING [J].

DEKEIJSER, TH ;

LANGFORD, JI ;

MITTEMEIJER, EJ ;

VOGELS, ABP .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1982, 15 (JUN) :308-314

[4] Nanoparticulate materials densification [J].

Groza, JR ;

Dowding, RJ .

NANOSTRUCTURED MATERIALS, 1996, 7 (07) :749-768

[5] Nonisothermal sintering of Mn doped ZnO [J].

Han, JP ;

Senos, AMR ;

Mantas, PQ .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1999, 19 (6-7) :1003-1006

[6] Grain size-dependent diffusion activation energy in nanomaterials [J].

Jiang, Q ;

Zhang, SH ;

Li, JC .

SOLID STATE COMMUNICATIONS, 2004, 130 (09) :581-584

[7] Sintering mechanisms of attrition milled titanium nano powder [J].

Panigrahi, BB ;

Godkhindi, MM ;

Das, K ;

Mukunda, PG ;

Dabhade, VV ;

Ramakrishnan, P .

JOURNAL OF MATERIALS RESEARCH, 2005, 20 (04) :827-836

[8] RATE-CONTROLLED SINTERING OF ULTRAFINE NICKEL POWDER [J].

RAGULYA, AV ;

SKOROKHOD, VV .

NANOSTRUCTURED MATERIALS, 1995, 5 (7-8) :835-843

[9] OVERVIEW 11 - A 2ND REPORT ON SINTERING DIAGRAMS [J].

SWINKELS, FB ;

ASHBY, MF .

ACTA METALLURGICA, 1981, 29 (02) :259-281

[10] SINTERING KINETICS AND MICROSTRUCTURE DEVELOPMENT OF NANOSCALE Y-TZP CERAMICS [J].

THEUNISSEN, GSAM ;

WINNUBST, AJA ;

BURGGRAAF, AJ .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1993, 11 (04) :315-324

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