It is one of the easiest and most rewarding benefits of modern life to turn on a light whenever you want. Traditionally, this was done by heating the wires in the bulb to give them bright white light. Now, researchers have come up with a more direct approach by inventing a new material that converts photons from infrared lasers into visible light.
The laser emits light to a transparent molecular film containing tin and sulfur atoms, where the atoms are arranged in a diamond-like pattern and surrounded by organic groups. The molecules in the film absorb the photons of the infrared laser and re-release the energy in the form of higher-energy visible photons. Most molecules will reappear like a pile of coins being replaced with brand new notes, a process that uses less energy from visible infrared photons from the energy of many infrared laser photons.
This conversion is not new. What's new is that tin and sulfur films direct the light to form a single beam. Researchers reported the result in a recent issue of Science. While most older conversion materials randomly send visible photons in different directions, the new technology can send it out in the same direction that light comes in. This gives it the ability to direct the beam to a specific place, making the material useful in microscopes and new projection systems.
Iron-based alloy powder is commonly used in plasma transfer arc welding (PTAW) due to its excellent mechanical properties and high resistance to corrosion and heat. This type of powder is typically composed of iron as the base metal, along with various alloying elements such as nickel, chromium, molybdenum, and tungsten.
The specific composition of the iron-based alloy powder may vary depending on the desired properties and application requirements. For example, adding nickel can increase the strength and toughness of the weld, while chromium enhances the corrosion resistance. Molybdenum and tungsten are often added to improve the high-temperature strength and creep resistance of the weld.
Iron-based alloy powders for PTAW are available in various particle sizes, typically ranging from a few micrometers to several hundred micrometers. The powder is usually fed into the plasma arc through a powder feeder, which ensures a controlled and consistent supply of powder during the welding process.
During PTAW, the powder is melted and deposited onto the workpiece, forming a weld bead. The high energy plasma arc provides the heat necessary to melt the powder and the base metal, creating a strong and durable weld joint.
Overall, iron-based alloy powder for plasma transfer arc welding offers excellent weldability, high mechanical properties, and resistance to corrosion and heat, making it suitable for a wide range of applications in industries such as aerospace, automotive, and power generation.
Fe Alloy Powder,Stainless Powder,High Temperature Powder,Iron Base Pta Welding Powder
Luoyang Golden Egret Geotools Co., Ltd , https://www.xtchvaf.com