Concrete waterproofing agent can significantly improve the impermeability and waterproofing of concrete, and the impermeability grade can reach P25 or higher. It is especially suitable for concrete for bungalow roof, large volume waterproof concrete,…
An international team of scientists, led by the Universities of Surrey and Sussex, has developed colour-changing, flexible photonic crystals that could be used to develop sensors that warn when an earthquake might strike next. The wearable,…
What is metal powder 3D printing? 3D printing of metal powder It should not only be flexible, but it must also have a small particle size and a narrow particle size distribution. In most 3D Printers you will find stainless steel, aluminium, cobalt…
What is gallium-nitride? Gallium nitride (chemical formula GaN) is a combination of nitrogen and galium. This compound makes a semiconductor with an energy gap. This compound has been used since 1990 in LEDs. It is similar in structure to wurtzite, a…