Silicide Powder

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Tungsten Disilicide Powder, WSi2, CAS 12039-88-2

Reference: HMSP-1730

Condition: New product

Tungsten Disilicide (WSi2) Powder is an inorganic and conductive ceramic compound with a high melting point and excellent oxidation resistance. It is commonly utilized as an electric shock material in microelectronics. Heeger Materials provides premium quality Tungsten Disilicide Powder at competitive prices, with purity and particle size customizable to meet specific requirements.

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Data sheet

Purity	99.5% - 99.9%
CAS	12039-88-2

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Tungsten Disilicide (WSi2) Powder is a black-grey powder characterized by a tetragonal crystal structure. It possesses several advantages, including a high melting point, excellent stability, and low resistivity. The powder is primarily produced through chemical vapor deposition and finds extensive application in the field of microelectronics as a contact material, owing to its low resistance. Additionally, it is utilized as a shunt over polysilicon lines to enhance conductivity and signal speed.

Tungsten Disilicide Powder, WSi2, CAS 12039-88-2

Formula: WSi2
Density: 9.3g/cm³
Melting point: 2160℃
Molecular weight: 240g/mol
CAS: 12039-88-2

Tungsten Disilicide Powder Specifications

Product	Purity (%)	Particle Size (D50)	Chemical Composition (%)
Product	Purity (%)	Particle Size (D50)	O	N	C	Si
HM-WSi2-1	>99.5	1-3μm	≤0.8	≤0.1	≤0.1	22.3-23.5
HM-WSi2-2	>99.9	-325mesh	≤0.5	≤0.05	≤0.1	22.3-23.5
Note	HM can provide different particle sizes according to customers' specific requirements.

Tungsten Disilicide Powder SEM

Tungsten Disilicide (WSi2) Powder - SEM

Good oxidation resistance
Soluble in fluorine aqua regia
Insoluble in water
Reacting violently to many substances

Tungsten Disilicide Powder Applications

Used in microelectromechanical systems
Used in oxidation-resistant coatings
Used as a shunt over polysilicon lines to increase their conductivity and increase signal speed

Tungsten Disilicide Powder Storage and Packing

Tungsten Disilicide (WSi2) Powder should be kept sealed and stored in a dry and cool place, avoiding being exposed to air. The vacuum packing is 100g/bag, 500g/bag, 1kg/bag, 25kg/drum, or per specific requirement.

Tungsten Disilicide (WSi2) Powder Packing

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