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tulammo.ru /en / Tula Cartridge Plant , also Tula Cartridge Works ( TCW ) ( Russian : Тульский патронный завод , Tul'skiy Patronnyj Zavod ) is a company based in Tula, Russia .
Ultra-high-temperature ceramics (UHTCs) are a type of refractory ceramics that can withstand extremely high temperatures without degrading, often above 2,000 °C. [1] They also often have high thermal conductivities and are highly resistant to thermal shock, meaning they can withstand sudden and extreme changes in temperature without cracking or breaking.
For example, transparent ceramic armor consisting of a lightweight composite has been formed by utilizing a face plate of transparent alumina Al 2 O 3 (or magnesia MgO) with a back-up plate of transparent plastic. The two plates (bonded together with a transparent adhesive) afford complete ballistic protection against 0.30 AP M2 projectiles at ...
Ceramic material is an inorganic, metallic oxide, nitride, or carbide material. Some elements, such as carbon or silicon, may be considered ceramics. Ceramic materials are brittle, hard, strong in compression, and weak in shearing and tension. They withstand the chemical erosion that occurs in other materials subjected to acidic or caustic ...
Dry lubricants, can be incorporated in plastics as fillers, as a component of sintered metals, or deposited on metal, ceramic and plastic surfaces. Molybdenum disulfide is a dry lubricant usable in vacuum. Tungsten disulfide is another dry lubricant usable in vacuum. It can be used at higher temperatures than MoS 2.
It is highly resistant to corrosive chemicals except oxidizing acids; has extremely low moisture absorption and a very low coefficient of friction; is self-lubricating (see boundary lubrication); and is highly resistant to abrasion, in some forms being 15 times more resistant to abrasion than carbon steel.
In 2005, this was followed by the sale of Francotyp-Postalia, a manufacturer of franking and inserting machines [34] and the deficit telecommunications company DeTeWe. [35] [36] During the conversion to a plastic producer, all family members withdrew from the core business in accordance with the shareholders' resolution and moved to supervisory ...
In Germany, in 2022 Tübingen was the first city to introduce a charge on single-use food packaging, to be paid by local restaurants. [24] A Germany-wide tax on single-use plastic manufacturers was enacted in 2023, [25] with the first levies due in 2025. [24]