Sic Crystal Wafer

Properties of major SiC polytypes

Polytype                                                       3C (β)                            4H                              6H (α)     

Crystal structure                                     Zinc blende (cubic)             Hexagonal                   Hexagonal    

Space group                                               T2d-F43m                    C46v-P63mc                 C46v-P63mc  

Pearson symbol                                              cF8                             hP8                               hP12       

Lattice constants (Å)                                      4.3596                     3.0730; 10.053            3.0810; 15.12  

Density (g/cm3)                                              3.21                            3.21                             3.21       

Bandgap (eV)                                                  2.36                            3.23                              3.05         

Bulk modulus (GPa)                                         250                             220                              220         

Thermal conductivity (W m−1K−1)

@ 300K (see [31] for temp. dependence)        360                             370                              490        

Silicon carbide exists in about 250 crystalline forms. The polymorphism of SiC is characterized by a large family of similar crystalline structures called polytypes. They are variations of the same chemical compound that are identical in two dimensions and differ in the third. Thus, they can be viewed as layers stacked in a certain sequence.

Alpha silicon carbide (α-SiC) is the most commonly encountered polymorph. It's formed at temperatures greater than 1700 °C and has a hexagonal crystal structure (similar to Wurtzite). The beta modification (β-SiC), with a zinc blende crystal structure (similar to diamond), is formed at temperatures below 1700 °C.

Hmois moissanite crystal sample is ok, we will base on our little stock sample to you

All we do is for moissanite products

Below is the detail grade information of our moissanite

Use of our moissanite crystal, rough moissanite

Silicon carbide is used for trauma plates of ballistic vests

In the 1980s and 1990s, silicon carbide was studied in several research programs for high-temperature gas turbines in Europe, Japan and the United States. The components were intended to replace nickel superalloy turbine blades or nozzle vanes. However, none of these projects resulted in a production quantity, mainly because of its low impact resistance and its low fracture toughness.

Like other hard ceramics (namely alumina and boron carbide), silicon carbide is used in composite armor (e.g. Chobham armor), and in ceramic plates in bulletproof vests. Dragon Skin, which was produced by Pinnacle Armor, used disks of silicon carbide.

Silicon carbide is used as a support and shelving material in high temperature kilns such as for firing ceramics, glass fusing, or glass casting. SiC kiln shelves are considerably lighter and more durable than traditional alumina shelves.

In December 2015, infusion of silicon carbide nano-particles in molten magnesium was mentioned as a way to produce a new strong and plastic alloy suitable for use in aeronautics, aerospace, automobile and micro-electronics.

Machine of our moissanite crystal, rough moissanite

Factory of our moissanite crystal, rough moissanite

Exhibition of our company

Bangkok Gem&Jewelry Fair 62nd

Package and shipment and payment of our moissanite crystal

 Why choose us:

（1. we are specialized in manufacturing synthetic gemstones and jewelry according to customers request. All kinds of colors, sizes and shapes can be customized.

（2.  we have two factory on is in Taiyuan and other one is in Gujiao

Taiyuan manufacture synthetic gemstones moissanite and CVD and HTHP products

Gujiao manufacture all kinds of the moissanite jewelry

（3. Unique styles, excellent quality and considerate services win general customers’ unanimous recognition and praise. We adhere to the management idea of regarding quality as life, innovation as driving force and customer first!

Moissanite  Maintenance

How to maintain

Care for the Moissanite ring, do not hit.

Moissanite is the hardest thing in the world after diamonds, but in fact it can't stand the collision. Especially the "claw-set" Moissanite, the waist is very fragile.

Care for the Mosang diamond ring, take good care of it

The Moissanite ring should be removed when doing heavy work, so as to avoid the deformation of the ring and the Mosang stone.Maintenance Moissanite ring, professional cleaning: Moissanite stone is very lipophilic and easy to contaminate oil, so apply hand cream and remove Moissanite when washing dishes. It can't be worn while swimming, and the chloride bleach in the water will erode the Moissanitering. It is recommended to choose professional jewelry cleaners and instrument cleaning. Maintenance Moissanite Ring, Classified Storage: Classify and store different gems to prevent friction between then.

Brand story

Hmois

In 1893, The French Nobel Prize winner Dr. Henry Moissan found these sparkling pieces of Sic.

In 1905, To order Dr. Henri moissan, the newly found gem was named Moissanite

Our company in order to celebrate the Dr. Henry Moissan, So named our brand to Hmois

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