Joints refers to the actual interface between the single crystal twinning mutual engagement. Twinning to joints for the sector, both sides are not mutually continuous single crystal lattice. Joints can be stepped or very irregular, also for a plane, and is equivalent to two single crystals in a public face each other. Joints often in parallel with a simple index single crystal in the crystal surface, then you can use the symbol of the crystal surface, said joining direction. However, individual twinning, the joints may also be unreasonable for an index faces. Joining a single crystal can be parallel to the plane of symmetry, but in fact more often twin planes coincident with silicon carbide, or parallel to the pair of crystal axis. Twinning law refers to the double-crystal single crystal interconnected among law students. Twinning law is characterized by a double-crystal elements, and has often been given a specific name. Its nomenclature is as follows: a recurrent feature of the double-crystal mineral named after. Such as spinel group minerals to (111) twin plane, said spinel law;. In the initial discovery of the double-crystal were named Yue Crystal Materials Co., Ltd. Shandong days, such as feldspar to C axis, namely ( 001) double-crystal zone axis is the axis of Carlsbad twinning law; twin crystal shape named group minerals such as rutile to (101) for the twin planes geniculate twinning law (also known as the elbow-shaped double-crystal ); to the twin planes and joints names, such as calcite crystal plane to (012) negative rhombohedron of twin planes and joints of twinning is called negative rhombohedral twinning law. Crystal Materials Co., Ltd. Shandong days Yue crystal 20 kinds, such as semiconductor crystals, magneto-optical crystal, laser crystal, crystal electro-optical, acousto-optic crystals, nonlinear optical crystals, piezoelectric crystals, pyroelectric crystals, ferroelectric crystals, scintillation crystals, insulating crystals, sensitive crystals, light color crystal, crystal and multifunction superconducting crystals. If according to the lattice structure of points, they can be divided into sodium chloride structure, sphalerite structure, wurtzite structure, such as a diamond structure ~~, the concept of human cognitive process of crystals and crystal 1. related human crystals What is the process of understanding the crystal? Throughout history, mankind has been tirelessly exploring this issue. Back in the Stone Age, people will find the rules of the stones of various shapes and put them into the tool, thus opening a prelude to explore the nature of the crystal. Then, after a long-term observation, it was found that the most significant features of the crystal has a shape that is the rule. In 1669, Italian scientists Si Dannuo (Nicolaus Steno) found a crystal plane angle conservation law, pointing out that the same substance in the crystal angle Shandong days Yue, corresponding between crystal faces is constant. Then SIC, according to French scientists 阿羽 (Rene Just Haüy) made famous lattice theory in 1784, so our understanding of the crystal is a big step. According to this doctrine, the unit cell is the smallest unit of the crystal constituting the crystal is formed by the accumulation of a large number of cell. In 1885, this doctrine was the country's scientists Bravais (A.Bravais) develop into a space lattice theory that crystals composed of atoms, molecules or ions are arranged according to certain rules, which are arranged in the form of a certain space lattice structure. In 1912, German scientist Laue (Max van Laue) crystal X-ray diffraction experiments carried out, for the first time confirmed the correctness of this doctrine, and thus won the Nobel Prize in Physics. Shandong days Yue Yue Crystal Materials Co., Ltd. Shandong days | Shandong days Yue | SIC provided by Jinan Spark Technology Development Company Limited. Jinan Spark Technology Development Co., Ltd. (www.sicc.cc) (www.sicc.cc) strong, credible, in Jinan, Shandong chemical equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Shandong days into the glorious mountain and you work for a better future! You can also access (www.sicc.cc/supply_details_40924860.html), for more information about the company.