Rare-earth oxide: aluminum oxide for midrange IR devices

2003 ◽  
Author(s):  
Richard Weber ◽  
Ronald W. Waynant ◽  
Ilko K. Ilev ◽  
Thomas Key ◽  
Paul Nordine
Keyword(s):  
Rare Earth ◽  
Aluminum Oxide ◽  
Rare Earth Oxide

Processing and Optical Properties of YAG- and Rare-Earth-Aluminum Oxide-composition Glass Fibers

2001 ◽  
Vol 702 ◽  
Author(s):  
Richard Weber ◽  
Johan Abadie ◽  
Thomas Key ◽  
April Hixson ◽  
Paul Nordine ◽  
...  
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Aluminum Oxide ◽  
Glass Fibers ◽  
Rare Earth Oxide ◽  
Infrared Transmission ◽  
Gain Bandwidth ◽  
Oxide Composition ◽  
Equilibrium Melting Point ◽  
Erbium Doped

ABSTRACTRare-earth-aluminum oxide-composition glass fibers 5-50 μm in diameter and containing up to 50 mole % rare-earth oxide were drawn from undercooled liquids 550-650 K below the equilibrium melting point. The fibers have tensile strengths of ∼6 GPa, glass transition temperatures of ∼1150 K, and infrared transmission up to ∼5500 nm. The optical properties of erbium-doped fibers containing up to 12.5 mole % Er2O3 were investigated. The 1/e lifetime of the 4I13/2 excited state was 0.8-7 ms, decreasing with increasing Er concentration. Amplified spontaneous emission measurements indicate extremely broadband spectra, up to 135 nm (3-dB width) in 0.5 mole % fibers. Although this result is encouraging, the gain bandwidth, which has not been measured, is likely narrower. Glass fibers were crystallized by heat treatment under tension at temperatures of 1300-1900 K to form flexible, creep resistant polycrystalline monofilaments with tensile strengths up to 2.4 GPa.

Glass Formation and Polyamorphism in Rare-Earth Oxide-Aluminum Oxide Compositions

2004 ◽  
Vol 83 (8) ◽  
pp. 1868-1872 ◽  
Author(s):  
J. K. Richard Weber ◽  
Johan G. Abadie ◽  
April D. Hixson ◽  
Paul C. Nordine ◽  
Gregory A. Jerman
Keyword(s):  
Rare Earth ◽  
Aluminum Oxide ◽  
Glass Formation ◽  
Rare Earth Oxide

scholarly journals Effect of rare earth oxide CeO2 on the anodic bonding performance of PEG-based MEMS encapsulation materials

2021 ◽  
Vol 13 (3) ◽  
pp. 168781402110077
Author(s):  
Chao Du ◽  
Cuirong Liu ◽  
Xu Yin ◽  
Haocheng Zhao
Keyword(s):  
Tensile Strength ◽  
Rare Earth ◽  
Rare Earth Oxide ◽  
Solid Polymer Electrolytes ◽  
Anodic Bonding ◽  
Solid Polymer ◽  
Bonding Layer ◽  
Scanning Calorimetry ◽  
Ion Migration ◽  
Bonding Performance

Herein, we synthesized a new polyethylene glycol (PEG)-based solid polymer electrolyte containing a rare earth oxide, CeO2, using mechanical metallurgy to prepare an encapsulation bonding material for MEMS. The effects of CeO2 content (0–15 wt.%) on the anodic bonding properties of the composites were investigated. Samples were analyzed and characterized by alternating current impedance spectroscopy, X-ray diffraction, scanning electron microscopy, differential scanning calorimetry, tensile strength tests, and anodic bonding experiments. CeO2 reduced the crystallinity of the material, promoted ion migration, increased the conductivity, increased the peak current of the bonding process, and increased the tensile strength. The maximum bonding efficiency and optimal bonding layer were obtained at 8 wt% CeO2. This study expands the applications of solid polymer electrolytes as encapsulation bonding materials.

scholarly journals On the resistance of rare earth oxide-doped YSZ to high temperature volcanic ash attack

2016 ◽  
Vol 307 ◽  
pp. 534-541 ◽  
Author(s):  
J. Xia ◽  
L. Yang ◽  
R.T. Wu ◽  
Y.C. Zhou ◽  
L. Zhang ◽  
...  
Keyword(s):  
Rare Earth ◽  
High Temperature ◽  
Volcanic Ash ◽  
Rare Earth Oxide

Wear resistance of hot-pressed Si3N4/SiC micro/nanocomposites sintered with rare-earth oxide additives

Wear ◽  
2010 ◽  
Vol 269 (11-12) ◽  
pp. 867-874 ◽  
Author(s):  
P. Tatarko ◽  
M. Kašiarová ◽  
J. Dusza ◽  
J. Morgiel ◽  
P. Šajgalík ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Rare Earth ◽  
Rare Earth Oxide

Solution-Processed Rare-Earth Oxide Thin Films for Alternative Gate Dielectric Application

2016 ◽  
Vol 8 (45) ◽  
pp. 31128-31135 ◽  
Author(s):  
Jiaqing Zhuang ◽  
Qi-Jun Sun ◽  
Ye Zhou ◽  
Su-Ting Han ◽  
Li Zhou ◽  
...  
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
Gate Dielectric ◽  
Rare Earth Oxide ◽  
Oxide Thin Films ◽  
Solution Processed
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