The energy consumption required to manufacture HOLLOW GLASS MICROSPHERES POWDERs

The energy consumption required to manufacture HOLLOW GLASS MICROSPHERES POWDERs, as described in Examples 1-4 of U.S. Patent No. 4,391,646 (Howell), can range from about 8 to about 50 kW-h per kg of product made. While commercial processes operating at a larger scale are more efficient, they still tend to use more than 5 kW- h per kg of product. Provided here are improved energy-efficient processes for producing HOLLOW GLASS MICROSPHERES POWDERs having high strength-to-density ratios compared w

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HOLLOW GLASS MICROSPHERES POWDERs

Hollow glass microspheres ("HOLLOW GLASS MICROSPHERES POWDERs"), also referred to as "glass bubbles," are balloon-like glass structures having a median diameter of fewer than 500 micrometers. HOLLOW GLASS MICROSPHERES POWDERs are currently made using a process where a milled glass powder (or "glass frit") that contains a suitable blowing agent is flame-heated to temperatures at which the glass begins to soften. At these temperatures, the blowing agent either becomes or produces a gas, causing th

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Synthesis of boron nitride

There are many ways to prepare hexagonal boron nitrides, such as the boron method, boric acid method, borate method, boron halide method, etc... The basic principle is that boron compounds (such as boric acid, boron, boron halide, and other borates) and nitrogen compounds (such as ammonia, urea, ammonia chloride, melamine, etc.) together through heating reaction, manager treatment to obtain different purity hexagonal boron nitride. The main methods of synthesis of hexagonal boron nitride in Chin

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What is Indium Selenide Used for?

Indium Selenide is an inorganic compound with the chemical formula In2Se3. Black crystals or dark black scale-like substances.

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Zinc sulfide is also an infrared optical material

Zinc sulfide is also an infrared optical material, transmitting from visible wavelengths to just over 12 micrometers. It can be used planar as a visual window or shaped into a lens. It is made as microcrystalline sheets by the synthesis from hydrogen sulfide gas and zinc vapor, and this is sold as FLIR-grade (Forward Looking Infrared), where the zinc sulfide is in a milky-yellow, opaque form. This material, when hot, isostatically pressed (HIPed) and can be converted to a water-clear format know

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