How to measure the damage of nano material attached to metal surface?
In traditional ceramic materials, the grain is difficult to slide, the material is brittle and the sintering temperature is high. The grain size of nano ceramics, grain easily in other grain sports, therefore, nano ceramic materials with high strength and high toughness and good ductility, these properties make nano ceramic material for cold working at room temperature or under high temperature. If the nano ceramic particles forming in high temperature, and surface annealing treatment can make nano materials become a conventional ceramic material to keep the surface hardness and chemical stability, high ductility and internal properties of ceramic nano material still has.
Nano two zirconia, nickel oxide, titanium dioxide and other ceramics are sensitive to temperature changes, infrared rays and automobile exhaust. Therefore, they can be used to make temperature sensors, infrared detectors and automobile exhaust gas detectors. The detection sensitivity is much higher than that of the common ceramic sensors.
Most of the nanomaterials used in practice are manufactured by hand. Nano magnetic material has very special magnetic properties, nanoparticles with small size, single domain structure and coercivity properties is very high, it is made of magnetic recording materials not only sound, image and good signal-to-noise ratio, and recording density dozens of times higher than gamma -Fe2O3. Superparamagnetic strong magnetic nanoparticles can also be made into magnetic liquids, used in electroacoustic devices, damping devices, rotary seals and lubrication, and beneficiation.
Turtles spawn at the seaside in Florida, but young turtles can swim and swim near Britain to find food. Finally, the growing turtle returns to spawning on the beach in Florida. It takes about 5~6 years to go back and forth. Why can a turtle walk thousands of kilometers? They rely on nano magnetic material in the head to navigate accurately.
