What Is an Amorphous Solid?

Amorphous solid noncrystalline solid, also known as amorphous or glass. The arrangement of atoms or molecules in it is non-periodic, and it is chaotically distributed like a liquid. It can be regarded as a supercooled liquid, such as glass, rosin, gelatin, etc. Amorphous solids have the following characteristics: the macroscopic properties are homogeneous, and this homogeneity is derived from the statistical law of the disordered distribution of atoms; the physical properties generally do not change with the measurement direction, and are called isotropic; they cannot form spontaneously. Shape; no fixed melting point; no diffractive effect on X-rays due to no periodic structure.

Amorphous solid

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Amorphous solid noncrystalline solid, also known as amorphous or

X-ray diffraction experiments show that amorphous solids (or amorphous bodies, vitreous bodies) have short-range order, but do not have long-range order at all. by

A good structural model has been proposed for three types of amorphous solid materials: continuous random network model, suitable for glass bodies formed by covalent bonds, such as silicon, silicon dioxide, germanium dioxide, germanium disulfide, Silicon telluride, etc .; Random packing model, suitable for amorphous metals and alloys; Random coil model, suitable for high-polymer amorphous solids.