Views: 126 Author: Site Editor Publish Time: 2020-08-08 Origin: Site
Optical connector is an indispensable passive device in optical communication system. It is mainly used to make non-permanent precise connections of two end faces between devices and devices, devices and instrumentation, devices and optical fibers in the system, so as to maximize the coupling of the light energy emitted by the transmitting optical fibers to the receiving optical fibers. Most optical connectors consist of three parts, two mating plugs and a coupling sleeve. The two fiber stubs are used to insert the ends of two optical fibers. The coupling sleeve acts as alignment, and the sleeve is often fitted with metal or non-metal flanges to facilitate the installation and fixing of connectors.
As the main part of optical connector, the ceramic fiber stub of optical connector is an important component of optical communication network. Currently, ceramic fiber stubs for optical connectors are formed by injection moulding of ceramic powder. The manufacturing process of ceramic fiber stub is divided into two parts, workblank production and precision machining. The raw materials of yttrium-stabilized Nano-Zirconium oxide powder are specially treated, granulated, injected into special moulds, and then sintered into workblanks at high temperature. The second part is to make ceramic fiber stub products with good rigidity and high precision by a series of precise grinding processes reaching the micron level.
Zirconium oxide has the following main properties.
1. Zirconium oxide has high fire resistance. Pure zirconium oxide has a melting point of 2715 degrees Celsius, but zirconium oxide stabilized with 15% MgO or CaO has a melting point of 2500 degrees Celsius. Sintered zirconium oxide at 2000 degrees Celsius does not change significantly from half an hour to one hour under 2 kg/cm load, indicating its high fire resistance.
2. Zirconium oxide has the highest toughness of all ceramics, and it also has a high strength. Combining the toughness, strength, hardness and chemical resistance of zirconium oxide, it can be used in a variety of complex and harsh environments. The stabilized zirconium oxide has high fire resistance and low specific heat and thermal conductivity. It is an ideal high temperature insulation material and can be used to make lining of high temperature furnace and various heat resistant coatings. This material can also be used to improve the high temperature resistance and corrosion resistance of metals or ceramics with low fire resistance.
3. The stabilized zirconium oxide is chemically stable and resistant to acidic and neutral materials at high temperatures, but not to alkaline materials. Zirconium oxide is used as kiln raw material because of its high refractive index, high melting point and high corrosion resistance. It can be used to make filters, ultrasonic detectors, ceramics for daily use, zirconium bricks and zirconium tubes for smelting precious metals, etc. Nano-zirconium oxide can also be used as matrix materials for polishes, piezoelectric ceramics, precision ceramics and high-temperature pigments. Zirconium oxide can also be used in the field of optical fiber. The ceramic fiber stub of optical connector is made from yttrium-stabilized nano-zirconium oxide powder.