Influence of the Calcination Temperature on the Optical and Mechanical Properties of Y2O3-MgO Nanocomposite

• Autorzy: Yong S.-M. , Choi D. H. , Lee K. , Ko S.-Y. , Cheong D.-I.

Identyfikatory

DOI

10.24425/123834

• Języki publikacji: EN

Abstrakty

EN

Y₂O₃-MgO nanocomposites are one of the most promising materials for hypersonic infrared windows and domes due to their excellent optical transmittance and mechanical properties. In this study, influence of the calcination temperature of Y₂O₃-MgO nanopowders on the microstructure, IR transmittance, and hardness of Y₂O₃-MgO nanocomposites was investigated. It was found that the calcination temperature is related to the presence of residual intergranular pores and grain size after spark plasma sintering. The nanopowders calcined at 1000°C exhibits the highest infrared transmittance (82.3% at 5.3 μm) and hardness (9.99 GPa). These findings indicated that initial particle size and distribution of the nanopowders are important factors determining the optical and mechanical performances of Y₂O₃-MgO nanocomposites.

Słowa kluczowe

EN

infrared transparent ceramics; Y2O3-MgO nanocomposites; sol-gel combustion synthesis; calcination; spark plasma sintering

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2018
• Tom: Vol. 63, iss. 3
• Strony: 1481--1484
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Yong S.-M.

• The 4th Research and Development Insititute-4, Agency of Defense Development (ADD), Yuseong P.O. Box 35, Daejeon 34186, Republic of Korea

autor

Choi D. H.

• The 4th Research and Development Insititute-4, Agency of Defense Development (ADD), Yuseong P.O. Box 35, Daejeon 34186, Republic of Korea

autor

Lee K.

• The 4th Research and Development Insititute-4, Agency of Defense Development (ADD), Yuseong P.O. Box 35, Daejeon 34186, Republic of Korea

autor

Ko S.-Y.

• The 4th Research and Development Insititute-4, Agency of Defense Development (ADD), Yuseong P.O. Box 35, Daejeon 34186, Republic of Korea

autor

Cheong D.-I.

• The 4th Research and Development Insititute-4, Agency of Defense Development (ADD), Yuseong P.O. Box 35, Daejeon 34186, Republic of Korea

Bibliografia

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Uwagi

EN

1. This work was supported by DAPA and ADD.

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).