scholarly journals On the Structure and Properties of AlMgB14-TiB2 Composites Obtained from SHS Powders by Spark Plasma Sintering

Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5521
Author(s):  
Pavel Nikitin ◽  
Ilya Zhukov ◽  
Aleksey Matveev ◽  
Sergei Sokolov ◽  
Mikhail Grigoriev ◽  
...  
Keyword(s):  
High Temperature ◽  
Spark Plasma Sintering ◽  
Skeletal Structure ◽  
Structure And Properties ◽  
Mass Ratio ◽  
Temperature Synthesis ◽  
Average Hardness ◽  
Plasma Sintering ◽  
High Temperature Synthesis ◽  
Spark Plasma

AlMgB14-TiB2 composite materials were fabricated by self-propagating high-temperature synthesis (SHS) followed by spark plasma sintering of the obtained SHS products. It was found that, during the SHS, the AlMgB14 phase is formed at a donor (Ti + 2B) to acceptor (Al12Mg17-B) mass ratio of 3:7 and 4:6, respectively. The specimen sintered from the SHS powder with the donor:acceptor mass ratio of 5:5 at a temperature of 1470 °C has a uniform skeletal structure. The average hardness of the obtained specimen is 30.1 GPa.

Spark plasma sintering of UHTC powders obtained by self-propagating high-temperature synthesis

2008 ◽  
Vol 43 (19) ◽  
pp. 6406-6413 ◽  
Author(s):  
Roberta Licheri ◽  
Roberto Orrù ◽  
Clara Musa ◽  
Antonio Mario Locci ◽  
Giacomo Cao
Keyword(s):  
High Temperature ◽  
Spark Plasma Sintering ◽  
Temperature Synthesis ◽  
Plasma Sintering ◽  
High Temperature Synthesis ◽  
Spark Plasma

AlMgB14–TiB2 composite materials obtained by self-propagating high-temperature synthesis and spark plasma sintering

2020 ◽  
Vol 46 (14) ◽  
pp. 22733-22737
Author(s):  
P.Yu. Nikitin ◽  
I.A. Zhukov ◽  
A.E. Matveev ◽  
S.D. Sokolov ◽  
M.S. Boldin ◽  
...  
Keyword(s):  
High Temperature ◽  
Composite Materials ◽  
Spark Plasma Sintering ◽  
Temperature Synthesis ◽  
Plasma Sintering ◽  
High Temperature Synthesis ◽  
Spark Plasma

IR-transparent MgO-Y2O3 ceramics by self-propagating high-temperature synthesis and spark plasma sintering

2020 ◽  
Vol 46 (10) ◽  
pp. 15786-15792
Author(s):  
D.A. Permin ◽  
M.S. Boldin ◽  
A.V. Belyaev ◽  
S.S. Balabanov ◽  
A.V. Novikova ◽  
...  
Keyword(s):  
High Temperature ◽  
Spark Plasma Sintering ◽  
Temperature Synthesis ◽  
Plasma Sintering ◽  
High Temperature Synthesis ◽  
Spark Plasma

scholarly journals IR-transparent MgO-Gd2O3 composite ceramics produced by self-propagating high-temperature synthesis and spark plasma sintering

2021 ◽  
Vol 10 (2) ◽  
pp. 237-246
Author(s):  
Dmitry A. Permin ◽  
Maksim S. Boldin ◽  
Alexander V. Belyaev ◽  
Stanislav S. Balabanov ◽  
Vitaly A. Koshkin ◽  
...  
Keyword(s):  
High Temperature ◽  
Spark Plasma Sintering ◽  
Xrd Analysis ◽  
Composite Ceramics ◽  
Temperature Synthesis ◽  
X Ray ◽  
Plasma Sintering ◽  
High Temperature Synthesis ◽  
Spark Plasma ◽  
Transparent Composite

AbstractA glycine-nitrate self-propagating high-temperature synthesis (SHS) was developed to produce composite MgO-Gd2O3 nanopowders. The X-ray powder diffraction (XRD) analysis confirmed the SHS-product consists of cubic MgO and Gd2O3 phases with nanometer crystallite size and retains this structure after annealing at temperatures up to 1200 °C. Near full dense high IR-transparent composite ceramics were fabricated by spark plasma sintering (SPS) at 1140 °C and 60 MPa. The in-line transmittance of 1 mm thick MgO-Gd2O3 ceramics exceeded 70% in the range of 4–5 mm and reached a maximum of 77% at a wavelength of 5.3 mm. The measured microhardness HV0.5 of the MgO-Gd2O3 ceramics is 9.5±0.4 GPa, while the fracture toughness (KIC) amounted to 2.0±0.5 MPa·m1/2. These characteristics demonstrate that obtained composite MgO-Gd2O3 ceramic is a promising material for protective infra-red (IR) windows.

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