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Date: 19-10-2018
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Date: 20-3-2017
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Date: 14-12-2018
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It is widely used as filaments for mass spectrographs and ion gauges. Rhenium-molybdenum alloys are superconductive at 10 K.
Rhenium is also used as an electrical contact material because it has good wear resistance and withstands arc corrosion. Thermocouples made of Re-W are used for measuring temperatures up to 2200C, and rhenium wire is used in photoflash lamps for photography.
Rhenium catalysts are exceptionally resistant to poisoning from nitrogen, sulfur, and phosphorus , and are used for hydrogenation of fine chemicals.
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دخلت غرفة فنسيت ماذا تريد من داخلها.. خبير يفسر الحالة
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العتبة العباسية المقدسة تستعد لإطلاق الحفل المركزي لتخرج طلبة الجامعات العراقية
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