Dielectric tunable properties of Ba0.5Sr0.5TiO3−Mg2TiO4−MgO composite ceramics prepared by spark plasma sintering

Materialia ◽  
2019 ◽  
Vol 5 ◽  
pp. 100217 ◽  
Author(s):  
Yanyan He ◽  
Yakai Peng ◽  
Xiaomeng Ma ◽  
Yebin Xu
Keyword(s):  
Spark Plasma Sintering ◽  
Composite Ceramics ◽  
Tunable Properties ◽  
Plasma Sintering ◽  
Spark Plasma

Dielectric properties of spark plasma sintering AlN-W composite ceramics

Rare Metals ◽  
2011 ◽  
Vol 30 (6) ◽  
pp. 633-638 ◽  
Author(s):  
Jiangyuan Wang ◽  
Xian Jia ◽  
Chengchang Jia ◽  
Guixia Dong ◽  
Yuli Zhang ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Spark Plasma Sintering ◽  
Composite Ceramics ◽  
Plasma Sintering ◽  
Spark Plasma

Spark Plasma Sintering of fine-grained YAG:Nd+MgO composite ceramics based on garnet-type oxide Y2.5Nd0.5Al5O12 for inert fuel matrices

2019 ◽  
Vol 226 ◽  
pp. 323-330 ◽  
Author(s):  
L.S. Alekseeva ◽  
A.I. Orlova ◽  
A.V. Nokhrin ◽  
M.S. Boldin ◽  
E.A. Lantsev ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Composite Ceramics ◽  
Fine Grained ◽  
Plasma Sintering ◽  
Spark Plasma

Microstructure and Properties of Spark Plasma Sintering AlN/BN Ceramics

2006 ◽  
Vol 313 ◽  
pp. 105-108 ◽  
Author(s):  
Lian Meng Zhang ◽  
Mei Juan Li ◽  
Qiang Shen ◽  
T. Li ◽  
M.Q. Yu
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Mechanical Strength ◽  
Spark Plasma Sintering ◽  
Volume Fraction ◽  
Sintering Temperature ◽  
Composite Ceramics ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Full Densification

Aluminum nitride-boron nitride (AlN/BN) composite ceramics were prepared by spark plasma sintering (SPS). The sintering behaviors of AlN/BN composites with 5~15% volume fraction of BN were studied. The influences of BN content, as well as the sintering temperature on the density, microstructure, mechanical strength, thermal conductivity and machinability of the composites were also investigated. The results showed that the full densification of AlN/BN composite ceramics could be realized by SPS technique at the temperature no higher than 1800°C for 3 minutes. The thermal conductivity of AlN/BN composites is in the range of 66~79W/mK, and AlN/BN composites can be cut or drilled by carbides or even steel tools when BN content is 15% volume fraction. The mechanical strength of AlN/BN composites is about 330MPa and is not remarkably affected by the addition of BN. The improvement of mechanical properties of AlN/BN composite ceramics is due to the fine and homogenous microstructure developed in the SPS process.

Spark Plasma Sintering of high-density fine-grained Y2.5Nd0.5Al5O12+SiC composite ceramics

2018 ◽  
Vol 103 ◽  
pp. 211-215 ◽  
Author(s):  
L.S. Golovkina ◽  
A.I. Orlova ◽  
V.N. Chuvil’deev ◽  
M.S. Boldin ◽  
E.A. Lantcev ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
High Density ◽  
Composite Ceramics ◽  
Fine Grained ◽  
Plasma Sintering ◽  
Spark Plasma

scholarly journals Effect of Additive Ti3SiC2 Content on Mechanical Properties of B4C–TiB2 Composites Ceramics Sintered by Spark Plasma Sintering

2020 ◽  
Author(s):  
Xingheng Yan ◽  
Xingui Zhou ◽  
Honglei Wang
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Spark Plasma Sintering ◽  
Bending Strength ◽  
High Fracture Toughness ◽  
Transgranular Fracture ◽  
Composite Ceramics ◽  
High Fracture ◽  
Plasma Sintering ◽  
Spark Plasma

Abstract B4C-TiB2 composite ceramics with ultra-high fracture toughness were successfully prepared via spark plasma sintering at 1900℃ using B4C and Ti3SiC2 as raw materials. The results show that compared with pure B4C ceramics sintered by SPS, the hardness of B4C-TiB2 composite ceramics is decreased, but the flexural strength and fracture toughness are significantly improved, especially the fracture toughness has been improved by leaps and bounds. When the content of Ti3SiC2 is 30vol.%, the B4C-TiB2 composite ceramic has the best comprehensive mechanical properties: hardness, bending strength and fracture toughness are 27.28 GPa, 405.11 MPa and 18.94 MPa·m1/2, respectively. The fracture mode of the B4C-TiB2 composite ceramics is a mixture of transgranular fracture and intergranular fracture. Two main two reasons for the ultra-high fracture toughness are the existence of lamellar graphite at the grain boundary, and the formation of a three-dimensional interpenetrating network covering the whole composite.

Sign in / Sign up

Export Citation Format

Share Document