Results 81 to 90 of about 399,955 (196)
AIP AdvancesAs rare-earth permanent magnet prices continue to fluctuate, interest in non-rare-earth permanent magnet-assisted synchronous reluctance motors (PMa-SynRMs) is increasing.
Su-Min Kim +6 more
doaj +1 more source
Journal of Asian Earth Sciences: XThis study investigates the distribution and enrichment patterns of the rare earth elements (REEs) in phosphorites from the Hirapur Formation of the Paleoproterozoic Bijawar Group in the Mardeora area, Madhya Pradesh, India.
Mohammad Javed +2 more
doaj +1 more source
Transient Analysis of a Magnetic Heat Pump [PDF]
, 1985 An experimental heat pump that uses a rare earth element as the refrigerant is modeled using NASTRAN. The refrigerant is a ferromagnetic metal whose temperature rises when a magnetic field is applied and falls when the magnetic field is removed. The heat
Schroeder, E. A.
core +1 more source
Rare earth - no case for government intervention [PDF]
China has officially restricted exports of rare earth for several years and announced this year it will further tighten exports. Rare earth is a group of 17 different metals, usually found clustered together.
Georg Zachmann
core +1 more source
Oxidation corrosion resistant superalloys and coatings [PDF]
, 1980 An article of manufacture having improved high temperature oxidation and corrosion resistance comprising: (a) a superalloy substrate containing a carbide reinforcing phase, and (b) a coating consisting of chromium, aluminum, carbon, at least one element ...
Jackson, Melvin R. +1 more
core +1 more source
Effect of Adding Rare Earth Elements Er and Gd on the Corrosion Residual Strength of Magnesium Alloy
Open Physics, 2019 The effects of the single and compound addition of rare earth Gd and Er on corrosion resistance and residual strength of as-cast AM50 magnesium alloy were studied using XRD, SEM, EDS, the weightlessness test, electrochemistry method, and tensile test ...
Yang Miao +4 more
doaj +1 more source
Solubility design leading to high figure of merit in low-cost Ce-CoSb_3 skutterudites [PDF]
, 2015 CoSb_3-based filled skutterudite has emerged as one of the most viable candidates for thermoelectric applications in automotive industry. However, the scale-up commercialization of such materials is still a challenge due to the scarcity and cost of ...
Chen, Sinn-wen +3 more
core
Luminescent glasses for transformation of X-ray emission in radiation introscopes [PDF]
, 2007 Compositions of luminescent glasses for transformers of X-ray emission in radiation introscopes have been developed. Investigation of X-ray-luminescence of inorganic glasses activated by rare-earth element ions at excitation by X-ray radiation is carried
Abiyaka, А. N. +3 more
core
Iraqi Geological JournalThe Mawat ophiolite is situated in the Kurdistan region of Iraq. Pyroxenite veins are crossed cut ultramafic Mawat ophiolite. Petrographic study and new geochemical data suggest that Pyroxenite veins in ultramafic units can be classified into ...
Darun Majeed, Irfan Yara
doaj +1 more source
Partial melting of amphibolite to trondhjemite near Ykutat, Alaska [PDF]
At Nunatak Fiord, 55 km NE of Yakutat, Alaska, a uniform layer of Cretaceous metabasalt approximately 3 km thick was metamorphosed to amphibolite facies and locally partially melted to trondhjemite pegmatite.
Barker, F.
core +1 more source