2018年6月18日星期一

Molybdenum Disc

Molybdenum Disc Characteristics:

They have smooth and clean surface, their flat roughness is down to Ra 1.6.
They have good conductions, small linear expansion coefficient and good heat-resistance.

molybdenum disc picture

Specifications:

Diameter Range:  7 ~ 100mm    Thickness Range:  0.8 ~ 4.0mm.
Square Piece:  4 ~ 25mm2          Thickness:  0.5 ~ 1.5mm
.
Parameters:

Density:  10.15g/cm3    Resistivity:  Less than 6.26 × 10-6Ωcm.
Linear Expansion Coefficient:  4.0 × 10-6K-1 ~ 6.4 × 10-6K-1.

Applications:

Be made to the thyristor silicon parts and its electric parts supporting base material.

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2018年6月14日星期四

Brief Introduction To Molybdenum Electrode

Molybdenum (Mo) is commonly used as back contacts for Cu(In,Ga)Se2(CIGS) thin film solar cells because it has the good molybdenum electrode electrical properties of an ohmic contactand is an inert, mechanically durable substrate duringthe absorber film growth. In general, Mo is deposited bydc sputtering onto soda-lime glass substrates. The elec-trical and the mechanical properties of sputtered refrac-tory metal films are known to vary with the working gaspressure .

molybdenum furnace electrode picture
CIGS thin film growth occurs at tempera-tures > 500  and at these temperatures, the thermallyinduced extrinsic stresses in the glass-Mo structure maycause bending or mechanical distortion of substrate. During the formation of CIGS films, Na ions diffuse fromthe soda-lime glass substrate through the Mo back con-tact into the absorber layer. The diffusion of Na into theabsorber film depends on the deposition conditions of theMo back contact .

Molybdenum films were deposited on soda-lime glass substrates by using DC magnetron sputtering. Their structural and morphological properties and their electrical resistivities were analyzed with respect to the working gas (Ar) pressure. The electrical resistivity of the Mo films monotonically increased as the gas pressure was increased. The films showed a (110) preferred orientation, regardless of the working gas pressure.

The surface morphology of the films changed from an elon-gated grain structure at lower working pressures to a porous nodular shape at higher pressures. The surface roughness of the films increased with the working gas pressure. Secondary ion mass spectrometry data showed that Na diffusion from the soda lime glass substrate through the Moback contact was high, for the film sputtered at 5 mTorr. Cu(InGa)Se2 solar cells fabricated on Mofilms sputtered at 5 mTorr showed the best conversion efficiencies.

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"Water and Soil Disease" Caused by Molybdenum Lack

The average contents of molybdenum is 1.3 PPM, in the earth crust. Fossil fuels containing molybdenum in natural water body is in very low concentrations, and molybdenum in sea water of the average concentration is 14 micrograms/l.

molybdenum pollution picture

But due to the Human activities widely used molybdenum and burning of molybdenum content fuel , so increase the molybdenum in the environment circulation.

What is more Weathering make the molybdenum released from the rock. Molybdenum distribution are not regularly, thus cause some areas lack of molybdenum and appear "water and soil disease".

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The Weakness in Chinese Molybdenum Price

Chinese molybdenum price is weak amid the price of molybdenum concentrate and molybdenum oxide declines slightly and ferro molybdenum price remains unchanged. Representative miners in Heilongjiang lowered product offers earlier this week, which enhances traders’ negative mentality. Trading atmosphere is quiet at present.

In the molybdenum concentrate market, some sellers with weak market confidence decline product prices for more shipments, but considering the support from supply side, the adjustment is limited. Although the production cost in the ferro molybdenum market shows signs of decline, steel bidding prices are in a relatively low level. Ferro molybdenum manufacturers are caught in heavy wait-and-see atmosphere.

Prices of molybdenum products on Jun. 13, 2018

China molybdenum price picture

Picture of ferro molybdenum

ferro molybdenum picture

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2018年6月11日星期一

Molybdenum Products

Many products flow from the mining and processing of ores containing molybdenite (MoS2), including:

Chemical Mo products

Used in catalysts, polymer compounding, corrosion inhibitors, and high-performance lubricant formulations, these include pure molybdic oxide and molybdates, and lubricant grade MoS2.

molybdenum powder photo

Meltstock products

Used as alloy additions to iron, steel, nickel, and titanium alloys, these include technical Mo oxide, ferromolybdenum, and Mo metal pellets.

Mo metal products

These include powder, Mo metal and Mo-base alloy mill products, and products fabricated from them.

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Molybdenum Rod

Molybdenum Rod 
Standard: ASTM B387
Material: Mo >99.95%
Density: >10.2g/cc

molybdenum rod picture

Surface Finish:
Black - Surface is "as swaged" or "as drawn"; retaining a coating of processing lubricants and oxides.
Cleaned - Surface is chemically cleaned to remove all lubricants and oxides.
Ground - Surface is center-less ground to remove all coating and to achieve precise diameter control.

Specification:
Molybdenum rod is manufactured as random length pieces or cut to customers' desired lengths in diameters ranging from 0.080 inches to 6.00 inches.

Applications:
Molybdenum rod can be stretched into molybdenum wire, molybdenum electrode and it also can be applied to steel-making additives, Electric vacuum parts, gas pipes, lead-wire, pole, side bar, daily-use glass, optical glass, insulation material and glass fiber.

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2018年6月8日星期五

Molybdenum Wire Applications

The molybdenum wire is principally used in the high-temperature field of molybdenum furnace and radio tube outlets, also in thinning the molybdenum filament, and the molybdenum rod in heating materials for high-temperature furnace, and side-bracket/bracket/outlets wire for heating materials.

molybdenum wire picture

Molybdenum wire recommend applications:

molybdenum wire applications picture

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