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N-type Moissanite Crystal
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Product: Views:197N-type Moissanite Crystal 
Unit price: Negotiable
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Delivery date: Since the payment date Days delivery
Valid until: Long-term effective
Last updated: 2019-03-04 01:36
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Details

Structure of major SiC polytypes



     (β)3C-SiC                           4H-SiC                                         (α)6H-SiC


     Hmois Synthetic Moissanite SiC CRYSTAL White & Green high purity 6N 99.9999%


 

All we do is for moissanite products

Below is the detail grade information of our moissanite


Properities

Moissanite

Chemical Component

High purity SiC

Refraction

2.7

Relative Density

3.2

Dispersion

0.104

Hardness

450GPa(NOTE:   Diamond should be 1050GPa)

Thermal Conductivity

390W/M/K

Thermal Coefficient of Expansion

3*10-6/K

Transmittance

400 Nano to Far TR

Electrical Resistivity

Between 103-1012


Use of our moissanite crystal, rough moissanite 


Pure silicon carbide can be made by the Lely process, in which SiC powder is sublimed into high-temperature species of silicon, carbon, silicon dicarbide (SiC2), and disilicon carbide (Si2C) in an argon gas ambient at 2500 °C and redeposited into flake-like single crystals, sized up to 2×2 cm, at a slightly colder substrate. This process yields high-quality single crystals, mostly of 6H-SiC phase (because of high growth temperature).

A modified Lely process involving induction heating in graphite crucibles yields even larger single crystals of 4 inches (10 cm) in diameter, having a section 81 times larger compared to the conventional Lely process.

Cubic SiC is usually grown by the more expensive process of chemical vapor deposition (CVD). Homoepitaxial and heteroepitaxial SiC layers can be grown employing both gas and liquid phase approaches. Pure silicon carbide can also be prepared by the thermal decomposition of a polymer, poly(methylsilyne), under an inert atmosphere at low temperatures.


Machine of our moissanite crystal, rough moissanite


Pure SiC is colorless. The brown to black color of the industrial product results from iron impurities.[citation needed] The rainbow-like luster of the crystals is caused by a passivation layer of silicon dioxide that forms on the surface.

The high sublimation temperature of SiC (approximately 2700 °C) makes it useful for bearings and furnace parts. Silicon carbide does not melt at any known temperature. It is also highly inert chemically. There is currently much interest in its use as a semiconductor material in electronics, where its high thermal conductivity, high electric field breakdown strength and high maximum current density make it more promising than silicon for high-powered devices. SiC also has a very low coeffici ent of thermal expansion (4.0 × 10−6/K) and experiences no phase transitions that would cause discontinuities in thermal expansion.


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. Quality grades including A B C D E 5 grade

2. The jewelry such as Ring, Pendant. Earring, Necklace, Bracelet, Bangle, Brooch

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!

4. Your visit to our company will be great honor! We are looking forward to your cooperation! Let’s work together for mutual development!
 

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

 

http://www.hmois.com/

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