Effect of sintering conditions on optical and mechanical properties of MgAl2O4/Al2O3 laminated transparent composite fabricated by spark-plasma-sintering (SPS) processing

2021 ◽  
Author(s):  
Lihong Liu ◽  
Koji Morita
Keyword(s):  
Mechanical Properties ◽  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Sintering Conditions ◽  
Optical And Mechanical Properties ◽  
Transparent Composite

Optical and mechanical properties of transparent alumina fabricated by high-pressure spark plasma sintering

2019 ◽  
Vol 39 (8) ◽  
pp. 2712-2719 ◽  
Author(s):  
Barak Ratzker ◽  
Avital Wagner ◽  
Maxim Sokol ◽  
Sergey Kalabukhov ◽  
Moshe P. Dariel ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Pressure ◽  
Spark Plasma Sintering ◽  
Transparent Alumina ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Optical And Mechanical Properties

Influence of Spark Plasma Sintering Conditions on the Optical and Mechanical Properties of Spinel

2020 ◽  
Vol 20 (11) ◽  
pp. 6821-6826
Author(s):  
Seok-Young Ko ◽  
Kisu Lee ◽  
Doo Hyun Choi ◽  
Seok-Min Yong ◽  
Dong-Ik Cheong
Keyword(s):  
Mechanical Properties ◽  
Heating Rate ◽  
Spark Plasma Sintering ◽  
Thermal Conditions ◽  
Mechanical Degradation ◽  
Infrared Transmittance ◽  
Plasma Sintering ◽  
Military Systems ◽  
Spark Plasma ◽  
Optical And Mechanical Properties

The influence of spark plasma sintering (SPS) conditions on the optical and mechanical properties of MgAl2O4 spinel was investigated for application to infrared windows as parts of military systems. The thermal conditions of SPS, including the temperature and heating rate, have a significant impact on optical and mechanical properties. This study shows that the formation and growth of abnormal grains cause mechanical degradation with an increasing SPS temperature. In-line transmittance (Tin) was affected by the heating rate due to changes in oxygen vacancy and carbon contamination in SPSed samples. The fabricated spinel exhibited excellent flexural strength of 401 MPa and an average mid-infrared transmittance of 84.8% in the range of 3–5 μm.

Transparent Hydroxyapatite Obtained through Spark Plasma Sintering: Optical and Mechanical Properties

2014 ◽  
Vol 631 ◽  
pp. 51-56 ◽  
Author(s):  
Zhong Li ◽  
Khiam Aik Khor
Keyword(s):  
Mechanical Properties ◽  
Spark Plasma Sintering ◽  
Visible Spectrum ◽  
Plasma Sintering ◽  
Cell Tissue ◽  
Long Duration ◽  
Different Types ◽  
Spark Plasma ◽  
Biomedical Field ◽  
Optical And Mechanical Properties

Transparent bioceramics have great potential for applications in the biomedical field as they facilitate direct observation of the interactions at biomaterial – cell / tissue interfaces. Thus far, sintering of transparent hydroxyapatite (HA) usually involves application of extraordinarily high pressure and / or long duration. This study attempts to fabricate transparent HA by a direct and fast Spark Plasma Sintering (SPS) process using three different types of raw powder: micro-spheres (MS), nanorods (NR) and nanospheres (NS). The optical and mechanical properties of the sintered pellets were examined and compared. The highest total forward transmittance (TFT) showed by sintered MS pellet (~2 mm thick) was 85% in the visible spectrum, whereas sintered NR and NS pellets were either translucent or opaque. Although lowest degree of transparency was observed for NS pellets, they demonstrated highest Young’s modulus (E), hardness (H) and fracture toughness (KIC). The eminent KIC of NS pellets benefited mainly from its self-toughened microstructure.

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
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