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Titanium carbide, Ti C, is an extremely hard ( Mohs 9–9.5) refractory ceramic material, similar to tungsten carbide. It has the appearance of black powder with the sodium chloride ( face-centered cubic) crystal structure . It occurs in nature as a form of the very rare mineral khamrabaevite ( Russian: Хамрабаевит) - (Ti,V,Fe)C.
Tungsten carbide (chemical formula: WC) is a chemical compound (specifically, a carbide) containing equal parts of tungsten and carbon atoms. In its most basic form, tungsten carbide is a fine gray powder, but it can be pressed and formed into shapes through sintering [7] for use in industrial machinery, cutting tools, chisels, abrasives, armor-piercing shells and jewelry.
Ultimate tensile strength (also called UTS, tensile strength, TS, ultimate strength or in notation) [ 1] is the maximum stress that a material can withstand while being stretched or pulled before breaking. In brittle materials, the ultimate tensile strength is close to the yield point, whereas in ductile materials, the ultimate tensile strength ...
Physical properties. In its raw form, tungsten is a hard steel-grey metal that is often brittle and hard to work. Purified, monocrystalline tungsten retains its hardness (which exceeds that of many steels), and becomes malleable enough that it can be worked easily. [ 18] It is worked by forging, drawing, or extruding but it is more commonly ...
Tungsten disulfide is another dry lubricant usable in vacuum. It can be used at higher temperatures than MoS 2. Tungsten disulfide used to be significantly more expensive, but molybdenum disulfide prices have risen to a comparable range. [7] Usable from −188 to +1316 °C in vacuum, from −273 to +650 °C in normal atmosphere. [8]
A wedding ring is commonly worn on the ring finger. A pair of wedding rings. A wedding ring or wedding band is a finger ring that indicates that its wearer is married. [ 1] It is usually forged from metal, traditionally gold or another precious metal. Rings were used in ancient Rome during marriage.
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