Effect of NH4F additive on purification of AlN ceramics
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DOI: 10.1007/s10854-017-6368-x
Abstract: In order to overcome the purification difficulty of aluminum nitride (AlN) ceramics, the sintering of AlN ceramics with ammonium fluoride (NH4F) as an additive had been studied. The results demonstrate that the addition of NH4F… read more here.
Keywords: additive purification; effect nh4f; aln; oxygen content ... See more keywords
Effect of oxygen content on reliability of Au-20Sn solder joints for the chip-level package
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Materials Science: Materials in Electronics"
DOI: 10.1007/s10854-019-02655-5
Abstract: In soldering process, oxygen trapped in solder often leads to reliability issues. In order to determine basic mechanisms, five commercial Au-20Sn solder preforms with different oxygen content were studied. The XPS results revealed that the… read more here.
Keywords: oxygen; solder joints; 20sn solder; solder ... See more keywords
The Deep Deoxygenation Behavior of Fine Hydrogenated Ti Alloy Powders
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DOI: 10.1007/s11837-021-04571-8
Abstract: In this work, a novel thermochemical method was introduced to produce fine titanium alloy powders with low oxygen content by utilizing hydrogenated titanium alloy powders mixed with Ca and CaCl2 powders. The stability of Ti-O… read more here.
Keywords: deoxygenation behavior; alloy powders; deep deoxygenation; oxygen content ... See more keywords
Electrochemical investigation of the anode processes in LiF–NdF3 melt with low oxygen content
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DOI: 10.1007/s12613-020-2010-7
Abstract: The oxidation of oxygen ions and the generation of an anode effect at a low oxygen content of 150 mg/kg were discussed in this paper. Cyclic voltammetry and square-wave voltammetry tests were conducted to explore… read more here.
Keywords: oxygen; processes lif; anode; oxygen content ... See more keywords
Preparation of AlN powder of low oxygen content via carbothermal reduction and nitridation by active gas exchange technique
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DOI: 10.1016/j.ceramint.2020.05.196
Abstract: Abstract By generating a periodic impulse-like pressure (2.0–4.4 kPa, 84 s) to actively exchange the gas in synthesis furnace, pure AlN powder of low oxygen content was synthesized via additive free carbothermal reduction and nitridation (CRN) of… read more here.
Keywords: aln powder; powder; gas; oxygen content ... See more keywords
Uranium and thorium partitioning in the bulk silicate Earth and the oxygen content of Earth’s core
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DOI: 10.1016/j.gca.2020.02.010
Abstract: Abstract This study investigates the partitioning of U and Th between molten metal and silicate liquid (DU and DTh) during Earth’s core-mantle differentiation. We report new Th partition coefficients between chondritic silicate melt and various… read more here.
Keywords: earth core; silicate; earth; oxygen content ... See more keywords
Effects of anode material oxygen content on molten metal convection generated via arc plasma heating
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DOI: 10.1016/j.ijheatmasstransfer.2018.02.102
Abstract: Abstract When the metal is melted by an arc plasma heating, convective flow is generated in the molten metal zone by various drag forces. The state of arc plasma used in this process is dependent… read more here.
Keywords: arc plasma; molten metal; plasma; oxygen content ... See more keywords
Effect of oxygen content on thermal stability of grain size for nanocrystalline Fe10Cr and Fe14Cr4Hf alloy powders
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DOI: 10.1016/j.jallcom.2017.05.261
Abstract: Abstract Low oxygen content powders of high purity elemental Fe, Cr and Hf were produced in a glove box by mechanically filing the solid materials. Fe10Cr and Fe14Cr4Hf nanocrystalline alloy powders were processed using these… read more here.
Keywords: alloy; stabilization; grain size; oxygen content ... See more keywords
Influence of A- and B-site substitutions on crystal structure and oxygen content in air-prepared Ba1−Pr Fe1−Co O3−δ perovskites
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DOI: 10.1016/j.jallcom.2020.158438
Abstract: Abstract The study of 96 samples of various compositions (x, y) in the Ba1−xPrxFe1−yCoyO3−δ system, prepared in air by the glycerol-nitrate method, made it possible to establish the compositional boundaries of stability for three types… read more here.
Keywords: phase; crystal structure; air; site ... See more keywords
Comparative effects of oxygenates-gasoline blended fuels on the exhaust emissions in gasoline-powered vehicles.
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DOI: 10.1016/j.jenvman.2019.03.039
Abstract: This study aimed to investigate the comparative effects of oxygenates such as ethanol (EA), methyl tertiary-butyl ether (MTBE), and ethyl tertiary butyl ether (ETBE) by fixing the oxygen contents as 0.82 wt% 1.65 wt%, and 2.74 wt% of… read more here.
Keywords: duty; mtbe; mtbe etbe; oxygen content ... See more keywords
Phase equilibria and oxygen content of intermediate phases in the Sm2O3–SrO–Fe2O3 system
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DOI: 10.1016/j.jeurceramsoc.2021.02.041
Abstract: Abstract Six types of oxide phases are formed in the Sm2O3–SrO–Fe2O3 system at 1100 °C in air: perovskite type Sr1-хSmхFeO3-δ (0.05 ≤ х ≤ 0.50 with the cubic structure, S.G. Pm-3 m and 0.85 ≤ x ≤… read more here.
Keywords: fe2o3 system; oxygen content; sro fe2o3; phase ... See more keywords