Preparation of Neodymium-Iron Master Alloys from Neodymium (III) Salts and Metallic Iron in Molten Chloride - Fluoride Mixtures
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The durability of parylene coatings on neodymium-iron-boron magnets.
A parylene coating is frequently used to prevent corrosion of neodymium-iron-boron magnets when they are used intra-orally. This in vitro study was designed to test the durability of parylene coating in a simulated oral environment. Single and double parylene-coated magnets were subjected to grinding and crushing forces in an industrial ball mill. The results demonstrate that abrasion and wear ...
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Measurement of the time-response of the excited-state concentration of manganese and neodymium has confirmed our previous hypothesis of fast energy transfer betwen donors and acceptors in fluoride glasses. I. lNTRODUCTION The absorption and fluorescence properties of solid-state materials can often be enhanced by codoping with two ions: one ion (referred to as the donor) which absorbs the energ...
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Secondary aluminium-iron (III) chloride batteries using a low temperature molten salt electrolyte were constructed and tested. Discharge current densities were in the range 5 to 100mA ( ~ 1 to 2 0 m A c m 2 ; ~ C/4 to 5C); charging currents were 5 m A (C/4 toC/2). Utilization of the positive electrode reactant was low due to the discharge rates and loading procedure. The mode for self discharge...
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ژورنال
عنوان ژورنال: ECS Proceedings Volumes
سال: 1987
ISSN: 0161-6374,2576-1579
DOI: 10.1149/198707.0835pv