Tungsten Crucibles for Sapphire Crystal Growth

Product details

T&D supply high quality of tungsten and molybdenum crucibles, cylinders and accessories for sapphire growing application.

----------30kg, 35kg, 55kg, 65kg, 90kg, 120kg….sizes of crucibles are available.

----------The purity is 99.95% min for both tungsten and molybdenum crucibles

----------Particularly high density.

----------We have complete equipment to test physical properties as density, hardness, surface roughness, grain size, tensile strength etc. the possible internal issues of crucible such as porosity, slag and cracks are doubly strictly inspected by eddy current and ultrasound.

----------Mostly we supply forging crucibles with high density. Machined from deep forged tungsten rods. the density is very close to theory value. For some extreme large outside diameter crucibles, we supply sintering finished crucibles. We still get good density by carefully controlling the HIP furnace sintering temperature.

---------All our crucibles can be used for above 2000 C degree

----------We can also make complete hot zone for sapphire crystal growth furnace; tungsten heater; molybdenum up shields, side shields; tungsten down shield, base shield; molybdenum current lead shield, current lead shield; tungsten stander, supporter and tungsten crucible pallet; molybdenum bottom; tungsten and molybdenum see holder etc.

----------Creep resistance, corrosion resistance.

---------Machined finished inside and outside with good surface roughness.

---------All outside, height, wall thickness, base thickness are available.

---------All other tungsten/molybdenum accessories are available.

Here is some sizes of crucibles we make for mono crystal growing application.

OD 130x150;

OD 200x240;

OD 240x300;

OD 250x350-400;

OD 330x350;

OD 330x450;

OD 338x460;

OD 350x550;

T&D supply molybdenum and tungsten trays/boats for vacuum PM and MIM. The material can be Pure Molybdenum, Lan-Molybdenum, TZM Molybdenum and Pure Tungsten

Our trays/boats can be with or without riveted, welded or non welded according to your drawings requirement. All charge carriers are available according to your drawings.

We can also supply aluminum trioxide coated trays/boats.

We strong recommend you choose Lanthanum-Molybdenum or TZM Moly material folded design trays/boats. They can be long time used under 1700 C degree. Please review the attached boat sketch.

We can supply the plates and trays with holes meeting your requirements. Moly and Tungsten spacers are available. Unique design of spacer is available.

The normal thickness is 0.100'' , 0.125'' , 0.15'' , 0.200'' . all other thickness material is available. All width, height and length of trays/boats are available.

Here is some examples for your reference

Lan-Moly material, folded design.

0.125'' THK, 1.00'' Hx7.50'' Wx12'' L,

0.100'' THK, 1.60'' Hx2.70'' Wx18.50'' L,

0.125'' THK, 1.60'' Hx2.70'' Wx18.50'' L,

3/16'' THK, 1.25'' Hx12.00'' Wx12.00'' L,

3/16'' THK, 1.75'' Hx12.00'' Wx12.00'' L,

We also supply the following molybdenum and tungsten products:

1: Pure Moly, TZM Moly, MLR Moly and Ta Sheet and Plate (fully annealed).

We can supply 24'' width x 120'' L of sheet with thickness of 0.005'' and up. All our Mo sheet as per ASTM B386 standard.

2: Pure Moly, TZM Moly and MLR Moly Rod and Wire (fully annealed, cleaned) As Per ASTM B387.

3: Pure Tungsten Rod (Deep Forged, Cleaned)

4: Threaded Moly Rods and Hex Nuts

Threaded Rods:

10-32 x 36''

1/4-20 x 36''

3/8-16 x 36''

Hex Nuts:

10-32

1/4 – 20

3/8 – 16

5: Tungsten Sheets and Plates

6: Besides supplying sheet, rod, wire, we also fabricate Mo/W/Ta Parts According to Your Drawings including hot zone, heat shields, molybdenum retort, grid element, sintering boat, charge carriers, shelves, hangers and heating element.

http://www.tdmfginc.com/