Simultaneous Synthesis and Rapid Consolidation of Nanostructured (Ti,Mo)C and Its Mechanical Properties

被引：0

作者：

Jo, Hyoung-Gon ^{[1
,2
]}

Kwon, Hanjung ^{[3
]}

Shoni, In-Jin ^{[1
,2
]}

机构：

[1] Chonbuk Natl Univ, Div Adv Mat Engn, Engn Coll, Jeonju 561756, South Korea

[2] Chonbuk Natl Univ, Engn Coll, Ctr Adv Bioimaging Res, Jeonju 561756, South Korea

[3] Korea Inst Geosci, Minerals & Mat Proc Div, Min & Mat Resources, Daejeon, South Korea

来源：

KOREAN JOURNAL OF MATERIALS RESEARCH | 2013年 / 23卷 / 11期

关键词：

nanomaterials; sintering; hardness; fracture toughness; hard materials;

D O I：

10.3740/MRSK.2013.23.11.620

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanocrystalline materials have recently received significant attention in the area of advanced materials engineering due to their improved physical and mechanical properties. A solid-solution nanocrystalline powder, (Ti,Mo)C, was prepared via high-energy milling of Ti-Mo alloys with graphite. Using XRD data, the synthesis process was investigated in terms of the phase evolution. Rapid sintering of nanostuctured (Ti,Mo)C hard materials was performed using a pulsed current activated sintering process (PCAS). This process allows quick densification to near theoretical density and inhibits grain growth. A dense, nanostructured (Ti,Mo)C hard material with a relative density of up to 96 % was produced by simultaneous application of 80 MPa and a pulsed current for 2 min. The average grain size of the (Ti,Mo)C was lower than 150 nm. The hardness and fracture toughness of the dense (Ti,Mo)C produced by PCAS were also evaluated. The fracture toughness of the (Ti,Mo)C was higher than that of TiC.

引用

页码：620 / 624

页数：5

共 16 条

[1] Rapid Sintering and Synthesis of Nanostuctured FeCrAlSi-Al2O3 Composite by High-Frequency Induction Heating [J].

Du, Song-Lee ;

Cho, Sung-Hun ;

Ko, In-Yong ;

Doh, Jung-Mann ;

Yoon, Jin-Kook ;

Park, Sang-Whan ;

Shon, In-Jin .

KOREAN JOURNAL OF METALS AND MATERIALS, 2011, 49 (03) :231-236

[2] STUDY OF NANOSTRUCTURED WC-CO COMPOSITES [J].

FANG, ZG ;

EASON, JW .

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 1995, 13 (05) :297-303

[3] Modified interfacial reactions in Ag-Zn multilayers under the influence of high DC currents [J].

Friedman, JR ;

Garay, JE ;

Anselmi-Tamburini, U ;

Munir, ZA .

INTERMETALLICS, 2004, 12 (06) :589-597

[4] Electric current enhanced defect mobility in Ni3Ti intermetallics [J].

Garay, JE ;

Glade, SC ;

Anselmi-Tamburini, U ;

Asoka-Kumar, P ;

Munir, ZA .

APPLIED PHYSICS LETTERS, 2004, 85 (04) :573-575

[5] Enhanced growth of intermetallic phases in the Ni-Ti system by current effects [J].

Garay, JE ;

Anselmi-Tamburini, U ;

Munir, ZA .

ACTA MATERIALIA, 2003, 51 (15) :4487-4495

[6] Anomalous properties in ferroelectrics induced by atomic ordering [J].

George, AM ;

Iñiguez, J ;

Bellaiche, L .

NATURE, 2001, 413 (6851) :54-57

[7] Synthesis and optical properties of Nd3+-doped Y3Al5O12 nanoceramics [J].

Hreniak, D ;

Strek, W .

JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 341 (1-2) :183-186

[8] Properties and Rapid Low-Temperature Consolidation of Nanocrystalline Fe-ZrO2 Composite by Pulsed Current Activated Sintering [J].

Kang, Hyun-Su ;

Ko, In-Yong ;

Yoon, Jin-Kook ;

Doh, Jung-Mann ;

Hong, Kyung-Tae ;

Shon, In-Jin .

METALS AND MATERIALS INTERNATIONAL, 2011, 17 (01) :57-62

[9] CERAMICS DUCTILE AT LOW-TEMPERATURE [J].

KARCH, J ;

BIRRINGER, R ;

GLEITER, H .

NATURE, 1987, 330 (6148) :556-558

[10] Mechanical Properties and Fabrication of Nanostructured (Ti,Mo)Si2 by Pulsed Current Activated Combustion [J].

Ko, In-Yong ;

Park, Na-Ra ;

Oh, Se-Hoon ;

Shon, In-Jin .

KOREAN JOURNAL OF METALS AND MATERIALS, 2011, 49 (08) :608-613

← 1 2 →