Development and Investigation of Tungsten Copper Sintered Parts for Using in Medium and High Voltage Switching Devices

被引：10

作者：

Lungu, M. V. ^{[1
]}

Lucaci, M. ^{[1
]}

Tsakiris, V. ^{[1
]}

Bratulescu, A. ^{[1
]}

Cirstea, C. D. ^{[1
]}

Marin, M. ^{[1
]}

Patroi, D. ^{[1
]}

Mitrea, S. ^{[1
]}

Marinescu, V. ^{[1
]}

Grigore, F. ^{[1
]}

Talpeanu, D. ^{[1
]}

Stancu, N. ^{[1
]}

Godeanu, P. ^{[2
]}

Melnic, C. ^{[2
]}

机构：

[1] Natl Inst Res & Dev Elect Engn ICPE CA INCDIE ICP, Adv Mat Dept, 313 Splaiul Unirii St, Bucharest 030138, Romania

[2] MAIRA MONTAJ SRL, 166 Stirbei Voda St, Bucharest 010121, Romania

来源：

INTERNATIONAL CONFERENCE ON INNOVATIVE RESEARCH - ICIR EUROINVENT 2017 | 2017年 / 209卷

关键词：

W-CU COMPOSITE; ELECTRICAL CONTACT MATERIALS; MECHANICAL-PROPERTIES; SOLID-STATE; MICROSTRUCTURE; FABRICATION; MICROWAVE; NI;

D O I：

10.1088/1757-899X/209/1/012012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Tungsten-copper (W-Cu) sintered parts with 75 wt.% W, 24 wt.% Cu and 1 wt.% Ni for using as arcing contacts in medium and high voltage switching devices were developed successfully by powder metallurgy (PM) techniques. Sintered parts with diameter of 50 +/- 0.5 mm and height of 6 +/- 0.5 mm were manufactured by pressing-sintering-infiltration (P-S-I) and spark plasma sintering (SPS) at sintering temperature of 1150 degrees C, and 1050 degrees C, respectively. Physical, chemical, electrical, thermal and mechanical properties of the samples were investigated. Microstructure was analyzed by optical microscopy and scanning electron microscopy. Material properties were influenced by the consolidation processes. The best results were achieved by SPS process. The relative density was more than 95 %, Vickers hardness HV1/15 was over 227, elastic modulus was over 143 GPa, and homogeneous microstructure was revealed. These good properties can contribute to higher lifetime of arcing contacts under severe working conditions.

引用

页数：11

共 24 条

[1] Synthesis and consolidation of W-Cu composite powders with silver addition
Azar, G. Taghavi Pourian
Rezaie, H. R.
Razavizadeh, H.
[J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2012, 31 : 157 - 163
[2] Effects of low-content activators on low-temperature sintering of tungsten
Boonyongmaneerat, Yuttanant
[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2009, 209 (08) : 4084 - 4087
[3] The mechanical properties of W-Cu composite by activated sintering
Chen, Pingan
Shen, Qiang
Luo, Guoqiang
Li, Meijuan
Zhang, Lianmeng
[J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2013, 36 : 220 - 224
[4] Effects of Zn additions on the solid-state sintering of W-Cu composites
Chen, Pingan
Luo, Guoqiang
Li, Meijuan
Shen, Qiang
Zhang, Lianmeng
[J]. MATERIALS & DESIGN, 2012, 36 : 108 - 112
[5] Experimental investigations on the synthesis of W-Cu nanocomposite through spark plasma sintering
Elsayed, Ayman
Li, Wei
El Kady, Omayma A.
Daoush, Walid M.
Olevsky, Eugene A.
German, Randall M.
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 639 : 373 - 380
[6] Review: liquid phase sintering
German, Randall M.
Suri, Pavan
Park, Seong Jin
[J]. JOURNAL OF MATERIALS SCIENCE, 2009, 44 (01) : 1 - 39
[7] Enhanced liquid-phase sintering of W-Cu composites by liquid infiltration
Ibrahim, Hafed
Aziz, Azizan
Rahmat, Azmi
[J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2014, 43 : 222 - 226
[8] Lide D.R., 2003, CRC HDB CHEM PHYS, V84, P4
[9] Development of W-Cu-Ni Electrical Contact Materials with Enhanced Mechanical Properties by Spark Plasma Sintering Process
Lungu, M.
Tsakiris, V.
Enescu, E.
Patroi, D.
Marinescu, V.
Talpeanu, D.
Pavelescu, D.
Dumitrescu, Gh
Radulian, A.
[J]. ACTA PHYSICA POLONICA A, 2014, 125 (02) : 327 - 330
[10] Solid state and liquid phase sintering of mechanically activated W-20 wt.% Cu powder mixture
Maneshian, M. H.
Simchi, A.
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 463 (1-2) : 153 - 161

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