What Is a Small Form Factor?

Small size effect. When the size of the particle is equal to or smaller than the physical characteristics such as the wavelength of the light wave, the De Broglie wavelength and the coherence length or transmission depth of the superconducting state, the periodic boundary conditions of the crystal will be destroyed The atomic density near the surface layer of the particles of the amorphous nano-particles decreases, causing changes in acoustic, optical, electrical, magnetic, thermal, and mechanical properties to take on new physical properties. This is called the small size effect. For ultrafine particles, the size becomes smaller and the specific surface area increases significantly, resulting in a series of novel properties as follows.

Small size effect

When gold is subdivided to a size smaller than the wavelength of the light wave, it loses its original rich luster and becomes black. In fact, all metals appear black in the ultrafine particle state. The smaller the size, the darker the color, silvery white

In the nano-sized state, the

People found

Ceramic materials are usually brittle, but nano-ceramic materials made from nano-nano-particles have good toughness. Because the nanomaterial has a large interface, the atomic arrangement of the interface is quite chaotic, and the atoms can easily migrate under the condition of external force deformation. Therefore, it exhibits excellent toughness and certain ductility, which makes the ceramic material have novel mechanical properties. American scholars have reported that calcium fluoride nanomaterials can be largely bent without breaking at room temperature. Studies show that the reason why human teeth have high strength is that they are made of nanomaterials such as calcium phosphate. Nano-grained metals are 3 to 5 times harder than traditional coarse-grained metals. As for metal-ceramic composite nanomaterials, the mechanical properties of the materials can be changed in a wider range, and its application prospects are very broad.

The small size effect of ultrafine particles is also manifested in superconductivity, dielectric properties, acoustic properties, and chemical properties.