Glass has helped humanity for centuries, sharing light with fragile clarity. Faced with pressure and temperature changes, glass shatters into pieces. Many industries require glass that goes above and beyond the normal limits in thermodynamic durability, so scientists developed borosilicate glass. What is borosilicate glass? Simply put, it is a material that uses boron in its fabrication to upgrade glass’s durability, impermeability, and thermodynamic resistance.
What Is Borosilicate Glass Made From?
Borosilicate glass uses silicon oxides, like standard glass. However, the material includes a crucial difference during the production process. By introducing boric acid, H3BO4, the glass acquires unique properties with vast applications. This boric acid only makes up 5 to 13% of the glass’s makeup, in the form of boron trioxide. The material includes far more silicon than standard glass, at around 80% silicon dioxide to standard glass’s 65%. Boron’s lightness and insulation qualities create glass identical to the norm in clearness and colour, but vastly different in heat resistance and durability.
How Is Borosilicate Glass Different To Standard Glass?
The need for borosilicate glass emerged as lenses, lamps, and cookware made from glass tended to shatter when rapidly changing temperature. Standard glass, known as soda-lime glass, accounts for around 90% of glazed products. It gets its soda lime name from its component materials: soda, or sodium oxide, and lime, or calcium oxide, mixed with silica. Cheaper and more malleable than other clear substances like crystal, glass usage extends far beyond windows. For high-stakes industries, such as scientific research, manufacture, aviation, and performing arts, consumers turn to an engineered glass such as borosilicate for a material that would not turn to shards at the crucial moment.
What Is Borosilicate Glass Most Effective At?
Borosilicate glass’s standout property, thermal shock resistance, stems from its coefficient of thermal expansion. This coefficient reflects the rate it expands in changing temperatures. Thermal expansion creates stresses and fractures, as different parts of the structures expand at different rates, stretching the material to breaking points.
Due to the presence of boron compounds, the material withstands temperature change with a far lower coefficient of thermal expansion than standard soda-lime glass. Depending on the boron content, borosilicate glass has a coefficient of thermal expansion between a half to a third as much as soda-lime glass. This creates a much larger thermal shock range, around 170 degrees Celsius. In other words, the engineered glass could hold ice cubes on one side and boiling water on the other while withstanding the shock.
What Is Borosilicate Glass Effective At Preventing?
Beyond the thermal resistance, boron compounds bring other useful qualities to glass products. The material’s impermeability creates a product with far less leaching than other glass vessels. Liquids held in borosilicate glass, therefore, stay purer for longer. Such products also resist physical and chemical impacts, as well as heat shock. Engineered glass creates products that protect their contents from radiation or protect users from radioactive contents. Clearly, this feature applies to many cutting-edge industries, from space travel to nuclear power.
Which Industries Would You Find It In?
A wide variety of industries and instruments use borosilicate glass. Wherever instruments face rapid heat changes, high temperatures, or radiation, experts turn to engineered glass for effective solutions. Machines that rely on warming and melting, such as 3D printers, use custom-engineered glass with boron compounds in their screens and printing beds. This allows plastic and other materials to print and cool without shattering the panes. Large scale heating and lighting elements also use engineered glass when warming aquariums, swimming pools, or other bodies of water. This heat resistance helps industrial and domestic heated appliances stay durable. Ovens, cookers, and heaters often employ the material in screens, panes, bulbs, and elements.
Other scientific applications include research and medicine. Optical lenses must retain the same shape to maintain the same magnification, so optics and lenses, from microscopes to military aircraft, use borosilicate glass for reliable clarity. Incidentally, militaries also use the same glass in bullet-proofing technologies. Engineered has huge potential in green and sustainable technologies, as solar panels and electronics use the material to pass light, absorb energy, and keep components safe and dry.
Of course, borosilicate glass is most commonly found in laboratory glassware. From beakers to stirring rods to protective screens, the glass’s heat resistance and durability support effective, cutting-edge study and manufacture. The impermeability also curbs leaching and contamination, keeping ingredients pure and results accurately.
Conclusions: What Is Borosilicate Glass
Scientific glassblowing uses borosilicate glass due to its superior thermodynamic, chemical, and physical properties. That an industry with standards as high as scientific research and manufacture uses such effective engineered glass reveals its advantages over other materials. Engineered glass products bring scientific levels of glazing excellence to laboratories, stages, armies, kitchens, and many more places around the world.