Pull the hands of the ceramic materials have what performance
you know not to know what performance, the shake handshandle of ceramic material mechanical characteristic below I to tell you
ceramic materials in engineering materials is best rigidity and hardness of the material, its hardness is mostly in more than 1500 hv. Ceramic high compressive strength, but low tensile strength, plasticity and toughness is poor. Thermal characteristics of
ceramic materials generally have a high melting point ( Most of above 2000 ℃) , and has excellent chemical stability at high temperature; Lower thermal conductivity than metal materials, ceramic is a good insulating material. Ceramic linear expansion coefficient is lower than the metal at the same time, when the temperature changes, the ceramics with good dimensional stability. Electrical property
most of the ceramic has good electrical insulation, so used to produce various kinds of voltage ( 1 kv ~ 110 kv) The insulation of the device. Ferroelectric ceramics ( Barium titanate (BaTiO3) Has the high dielectric constant and can be used for production of capacitor, ferroelectric ceramics under the action of electric field, can also change shape, converts electrical energy into mechanical energy ( With the characteristics of piezoelectric materials) , can be used as a megaphone, record player, ultrasonic instrument, sonar, sound spectrograph for medical use, etc. A few ceramics has the characteristics of semiconductor, as a rectifier. The chemical characteristics of
to oxidation at high temperature ceramic materials, and the acid, alkali, salt has good corrosion resistance.
this is the shake handshandle of ceramic materials in some performance.