Effect of DC Pulse Patterns on Spark Plasma Sintering Process of [Fe0.8Co0.2B0.05Si0.2]96Nb4 Bulk Metallic Glass

2016 ◽  
Vol 849 ◽  
pp. 28-33
Author(s):  
Yue Ting Sun ◽  
Hui Liang Shao ◽  
Zhan Kui Zhao
Keyword(s):  
Spark Plasma Sintering ◽  
Glassy Alloy ◽  
Vital Role ◽  
Coordination Mechanism ◽  
Duty Ratio ◽  
Glassy Matrix ◽  
Sintering Process ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Amorphous Alloy Powder

The influence of direct current pulse on–off patterns on spark plasma sintering of [Fe0.8Co0.2B0.05Si0.2]96Nb4 on kinetics competition and coordination mechanism of the interface bonding and crystallization has been investigated systematically. No crystallization of metallic glassy matrix and good bonding state between the particles were responsible for good mechanical properties of the fabricated Fe-based bulk glassy alloy at 2:9 (on: off) pattern. The higher local micro area’s instantaneous power and larger cooling time caused by low pulse duty ratio played a vital role in consolidation of amorphous alloy powder and desired structural properties.

Fabrication of Ni52.5Nb10Zr15Ti15Pt7.5 Bulk Metallic Glassy Matrix Composite Containing Dispersed ZrO2 Particulates by Spark Plasma Sintering

2007 ◽  
Vol 561-565 ◽  
pp. 1291-1294 ◽  
Author(s):  
Guo Qiang Xie ◽  
Dmitri V. Louzguine-Luzgin ◽  
Hisamichi Kimura ◽  
Fumihiro Wakai ◽  
Akihisa Inoue
Keyword(s):  
Spark Plasma Sintering ◽  
Matrix Composite ◽  
Glassy Phase ◽  
Glassy Alloy ◽  
Glassy Matrix ◽  
Matrix Composites ◽  
Plasma Sintering ◽  
The Matrix ◽  
Spark Plasma ◽  
Rapid Sintering

Spark plasma sintering (SPS), as a developed rapid sintering technique, has a great potential for producing larger metallic glassy alloy specimens in a variety of shapes than those fabricated by casting methods, and can readily produce composites by dispersing crystalline particles in the glassy matrix. In this study, the Ni52.5Nb10Zr15Ti15Pt7.5 bulk metallic glassy matrix composites dispersed homogeneously with ceramics ZrO2 particulates were fabricated by the SPS process. The plastic ductility of the Ni52.5Nb10Zr15Ti15Pt7.5 glassy matrix composites was improved by adding ZrO2 particulates into the glassy alloy. The matrix of the fabricated composites maintained a glassy phase after the SPS process.

scholarly journals Fabrication of ZrCuAlNi Metallic Glassy Matrix Composite Containing ZrO2 Particles by Spark Plasma Sintering Process

2007 ◽  
Vol 48 (2) ◽  
pp. 158-162 ◽  
Author(s):  
Guoqiang Xie ◽  
Dmitri V. Louzguine-Luzgin ◽  
Hisamichi Kimura ◽  
Akihisa Inoue
Keyword(s):  
Spark Plasma Sintering ◽  
Matrix Composite ◽  
Glassy Matrix ◽  
Sintering Process ◽  
Plasma Sintering ◽  
Spark Plasma

Cu Particulates Dispersed Bulk Metallic Glass Composites with High Strength and High Electrical Conductivity Fabricated by Spark Plasma Sintering

2014 ◽  
Vol 783-786 ◽  
pp. 1961-1966
Author(s):  
Guo Qiang Xie ◽  
Feng Xiang Qin ◽  
Hisamichi Kimura
Keyword(s):  
Electrical Conductivity ◽  
Spark Plasma Sintering ◽  
Glassy Alloy ◽  
High Strength ◽  
Sintering Process ◽  
High Electrical Conductivity ◽  
Glass Composites ◽  
Glassy Alloys ◽  
Plasma Sintering ◽  
Spark Plasma

Using the mixed powders containing gas-atomized powders of metallic glassy alloys (Cu50Zr45Al5, Fe73Si7B17Nb3, Ni52.5Nb10Zr15Ti15Pt7.5) blended with high-conductive Cu particulates, we produced bulk metallic glassy alloy composites with high strength and high electrical conductivity, as well as with enhanced plasticity and satisfying large size requirements by a spark plasma sintering process. In this paper we present and review our research results on the fabrication and properties of the bulk glassy alloy composites by the spark plasma sintering process.

Fabrication and Mechanical Properties of ultra fine WC-6wt.%Co by Spark Plasma Sintering Process

2011 ◽  
Vol 49 (01) ◽  
pp. 40-45 ◽  
Author(s):  
Hyun-Kuk Park ◽  
Seung-Min Lee ◽  
Hee-Jun Youn ◽  
Ki-Sang Bang ◽  
Ik-Hyun Oh
Keyword(s):  
Mechanical Properties ◽  
Spark Plasma Sintering ◽  
Sintering Process ◽  
Plasma Sintering ◽  
Spark Plasma

scholarly journals Processing of MMC through conventional sintering and spark plasma sintering process: A review

2020 ◽  
Vol 988 ◽  
pp. 012092
Author(s):  
B Stalin ◽  
M Ravichandran ◽  
M Balasubramanian ◽  
C Anand Chairman ◽  
D Pritima ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Sintering Process ◽  
Plasma Sintering ◽  
Conventional Sintering ◽  
Spark Plasma

scholarly journals Shape Memory NiTi and NiTiCu Alloys Obtained by Spark Plasma Sintering Process

2015 ◽  
Vol 13 ◽  
pp. 83-90 ◽  
Author(s):  
Cristiana Diana Cristea ◽  
Magdalena Lungu ◽  
Alexander M. Balagurov ◽  
Virgil Marinescu ◽  
Otilia Culicov ◽  
...  
Keyword(s):  
Shape Memory ◽  
Intermetallic Compounds ◽  
Spark Plasma Sintering ◽  
Sintering Process ◽  
Transformation Behavior ◽  
Plasma Sintering ◽  
New Process ◽  
Shape Memory Properties ◽  
Spark Plasma ◽  
Niti Shape Memory Alloys

The addition of Cu to near equiatomic NiTi shape memory alloys (SMAs) can provide some modifications of their shape memory properties by affecting their transformation behavior. The same effect was obtained in the case of Ni3Ti2 and Ni4Ti3 precipitates presence in the microstructure of NiTi. Also the substitution of Cu to NiTi alloys increases the hardness of the materials. This paper presents the microstructural and mechanical investigations of NiTi and NiTiCu alloys obtained by spark plasma sintering (SPS) process that represents a great potential for researchers as a new process for the fabrication of intermetallic compounds.

scholarly journals Effects of Initial Punch-Die Clearance in Spark Plasma Sintering Process

2008 ◽  
Vol 49 (12) ◽  
pp. 2899-2906 ◽  
Author(s):  
Salvatore Grasso ◽  
Yoshio Sakka ◽  
Giovanni Maizza
Keyword(s):  
Spark Plasma Sintering ◽  
Sintering Process ◽  
Plasma Sintering ◽  
Spark Plasma

Development of WC-Fe3Al Composites by Spark Plasma Sintering Process

2016 ◽  
Vol 881 ◽  
pp. 307-312
Author(s):  
Luis Antonio C. Ybarra ◽  
Afonso Chimanski ◽  
Sergio Gama ◽  
Ricardo A.G. da Silva ◽  
Izabel Fernanda Machado ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Zinc Stearate ◽  
Sintering Process ◽  
X Ray Diffraction ◽  
X Ray ◽  
Plasma Sintering ◽  
Al Composite ◽  
Spark Plasma ◽  
Short Time ◽  
Vibration Mill

Tungsten carbide (WC) based composites are usually produced with cobalt, but this binder has the inconvenience of shortage, unstable price and potential carcinogenicity. The objective of this study was to develop WC composite with intermetallic Fe3Al matrix. Powders of WC, iron and aluminum, with composition WC-10 wt% Fe3Al, and 0.5 wt% zinc stearate were milled in a vibration mill for 6 h and sintered in a SPS (spark plasma sintering) furnace at 1150 °C for 8 min under pressure of 30 MPa. Measured density and microstructure analysis showed that the composite had significant densification during the (low-temperature, short time) sintering, and X-ray diffraction analysis showed the formation of intermetallic Fe3Al. Analysis by Vickers indentation resulted in hardness of 11.2 GPa and fracture toughness of 24.6 MPa.m1/2, showing the feasibility of producing dense WC-Fe3Al composite with high mechanical properties using the SPS technique.

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