How is borosilicate glass prepared?

How is borosilicate glass prepared?

Borosilicate glass is created by combining and melting boric oxide, silica sand, soda ash, and alumina. Since borosilicate glass melts at a higher temperature than ordinary silicate glass, some new techniques were required for industrial production.

What is the properties of borosilicate glass?

Borosilicate glass is chemically resistant, has a low thermal expansion coefficient and can be used at relatively high temperatures. It is available in many forms and sizes such as rod, tube, plate and as machined or hot formed components.

What is the composition of borosilicate?

Borosilicate glass contains substantial amounts of silica (SiO2) and boron oxide (B2O3>8%) as glass network formers, and are typically composed of 70–80 wt% SiO2, 7–13 wt% of B2O3 4–8 wt% Na2O or K2O, and 2–8 wt% of Al2O3 (Bauccio, 1994; Pfaender, 1996).

What is the difference between fused silica and quartz?

The terms “fused silica” and “fused quartz” are often used interchangeably. More accurately, “fused quartz” refers to an amorphous solid formed by melting naturally-occurring quartz. So, while fused silica is ostensibly pure SiO2, fused quartz contains impurities depending on the quartz that was used.

What is IR grade?

Fused silica is a common glass type used in the optics industry to manufacture optical components such as lenses, windows, mirrors, prisms, and beamsplitters. Fused silica is often a preferred material for precision optics due to its consistent and repeatable optical performance.

Does silica absorb UV light?

It has been shown that silicon nanoparticles are sensitive to UV light in a wavelength range around ~200 nm. UV light is absorbed and re-emitted at wavelengths in the visible range depending on the size of the nanoparticles.

What are 5 uses of borosilicate glass?

Borosilicate Glass: Properties, Production and Applications

• Low thermal expansion.
• High material strength.
• Chemical stability.
• Laboratory glassware.
• Pharmaceutical glass tubing.
• Cookware and kitchen implements.
• Optical equipment.
• Lighting technology.

What is borosilicate used for?

What is borosilicate glass used for? Because of its durability and resistance to chemical changes, borosilicate glass has traditionally been used in chemistry labs and industrial settings, as well as for kitchenware and premium wine glasses.

What is the difference between quartz and fused quartz?

The main difference between the two is that Fused Silica is composed of a non-crystalline silica glass, while Quartz is made from crystalline silica. This difference gives Fused Silica very high transmission in the UV spectrum compared to that of Quartz. Quartz also features a much lower OH content.

What is IR material?

IR Materials Overview Infrared materials are grouped together due to their ability to transmit into the infrared spectrum (0.750 μm -1000μm). Most IR materials used in optical applications are in the short-wave (1.4 – 3μm) to mid-wave (3 – 8μm) infrared regions.

What is IR coating?

Infrared coatings protect your surfaces and are ideal for materials with specific, complex properties. We offer a wide range of infrared optical coatings in the wavelength range from λ1. 5 to 20 micrometers.

Can UV pass through silicone?

However, silicone coatings do not break down due to UV exposure. Despite this being one of the most common objections we hear when discussing silicone, it’s not true. Thanks to its chemical formulation, silicone is actually extremely UV stable.

What is the difference between glass and borosilicate glass?

The borosilicate glass is harder than regular glass as it can be moulded into more complex shapes. It is also more resistant to acid erosion (which is why you commonly find it used in chemistry labs).

What is borosilicate material?

Borosilicate glass is a type of glass with the main glass-forming constituents’ silica and boron oxide. Borosilicate glasses are known for having very low coefficients of thermal expansion (∼5 × 10−6/ °C at 20 °C) making them resistant to thermal shock more so than any other common glass.