INNOVACERA | technical ceramic solutions

Source: https://www.innovacera.com/news/ceramic-cavity-reflectors.html Tags: Ceramic Cavity Reflector, Nd:YAG Lasers The ceramic reflectors used in Nd:YAG lasers are with reflection 97% at wavelength 600-1000nm and 95% reflection at wavelength 400-1200nm. Today let’s talk about the cautions when you use the ceramic reflectors. Do not put high pressure on it during transportation. When the size is not suitable for the pump chamber, don’t put the ceramic reflectors into the chamber by force. Half glazing ceramic reflectors must be sealed with the chamber in order to avoid cooling liquid’s indrawing. Or the reflection may go down quickly. Do not scratch the reflector during assembly and maintenance, or the reflection will go down quickly. Please choose the correct cooling system line & material of equipment in short-wave(eg.755nm) high-temperature system, or the metallic oxide which is dissociated from them will pollute the ceramic reflectors.

Source: https://www.innovacera.com/news/htcc-and-ltcc.html What is HTCC? It means high-temperature co-fired ceramics which is using alumina, AlN and other ceramic material to be sintering with conductor materials (Mo, W, Mo, Mn) under high temperature of 1600°C.  This is first designed by RCA company by the end of the 1950s. Due to the high temperature, it can not use low melting point metal materials like gold, silver and copper, but Mo, W, Mo, Mn.  This material is low conductivity so it will lead to signal delay. So it is not suitable to make high speed or high frequency micro-assembled electric subgrade board. But the advantages of the HTCC are High structural strength, high thermal conductivity, good chemical stability, high wiring density. It has a wide application prospect in high power micro-assembly circuit. How about LTCC? It has a lower sintering temperature lower than 900°C, using AU, Ag, Cu high conductivity low melting point metal materials could be sintering by air. It 

Source: https://www.innovacera.com/news/ceramic-hot-surface-igniters.html INNOVACERA offers ceramic igniters for hot surface ignition systems in heating applications. These high strengths, heat resistant ceramic igniters have become an industry standard in gas heating systems. Their superior materials and rapid heating capabilities provide reliable performance over a long useful life. Applications include: Gas heating systems Ovens/ranges Dryers And more IGNITER PRODUCT FAMILIES INNOVACERA offers two families of ceramic igniters, each offering different ranges of style, durability, and heat up speed to ignition temperatures — all leveraging strong material properties including: Low porosity High operating temperature Corrosion resistant Long lasting Easy to install and retrofit Alumina Igniter INNOVACERA’s alumina igniter can reach a permanent working temperature above 900°C. Since air can through and around inside and outside of the heater tube, heat can be trans

Source: https://www.innovacera.com/news/ceramic-to-metal-seals.html The Ceramic Surfaces for Brazing, the surface must be metallized. Compare to Glass seal, Ceramic seal has exceptional resistance to thermal and mechanical shock as well as corrosion. While it requires more complex manufacturing processes and sophisticated engineering, the price is obviously higher. Advantages of Ceramic-to-Metal Seals  More solid, durable hermetic seal and better electrical insulation Used for more harsh conditions, such as high and low (cryogenic) temperature, corrosive, high pressure, and high vacuum environments High mechanical strength, less fracture when applied to high vibration and high g-load conditions Shows strong bond and an excellent seal with metals and alloys, such as copper and Cu alloys (CuNi) and to nickel and Ni alloys. Besides the above advantages, ceramic-to-metal still has more advantages to be discovered, welcome to consult with us for more details.