Tantalum Single Crystal

CAS Number:	7440-25-7
Purity:	99.99%
Size:	Diameter 6-12mm; Thickness 1-2mm
Orientation:	(100), (110) and (111)

 

Product Description

Tantalum single crystal is a high-purity material with exceptional properties, widely used in advanced industries such as electronics, aerospace, and semiconductor manufacturing. Due to its high melting point, superior corrosion resistance, and excellent conductivity, tantalum single crystal is essential in applications requiring extreme performance.

 

Features & Properties

✔ High Purity – 99.99% purity ensures excellent material performance.
✔ Crystal Orientation – Available in (100), (110), and (111) orientations.
✔ Superior Corrosion Resistance – Highly resistant to acids and aggressive environments.
✔ High Thermal & Electrical Conductivity – Ensures efficiency in electrical and high-temperature applications.
✔ High Melting Point – Withstands extreme temperatures up to 3,017°C.

 

Applications & Related Industries

🔹 Semiconductor Industry – Used in thin-film deposition, microelectronic components, and wafer processing.
🔹 Aerospace & Defense – Ideal for high-temperature components, radiation shielding, and precision equipment.
🔹 Medical Devices – Utilized in surgical implants, pacemakers, and biomedical coatings.
🔹 Superconductors & High-Tech Research – Supports research in particle physics and advanced material development.
🔹 Vacuum Coating & Sputtering Targets – Essential for high-purity thin-film applications.

 

Synonyms

Tantalum Monocrystal

Ta Single Crystal

High-Purity Tantalum

 

Health & Safety Information

⚠ Handling Precautions – Avoid inhaling fine particles or dust. Use proper protective equipment.
⚠ Storage – Store in a dry, inert environment to prevent oxidation.

 

Production Method & Equipment

Tantalum single crystals are produced using the Czochralski method (CZ) or floating zone technique (FZ). These methods ensure high purity and precise crystal orientation for specialized applications. The manufacturing process involves:
1️⃣ High-temperature melting in an inert atmosphere.
2️⃣ Controlled solidification to maintain a uniform crystal structure.
3️⃣ Precision cutting and polishing to achieve required dimensions.

 

Size & Customization

📏 Standard Sizes:

Diameter: 6-12mm

Thickness: 1-2mm
📐 Custom Sizes: Available upon request for specialized applications.

 

Certifications & Quality Assurance

✅ ASTM Standards – Meets industry specifications for purity and performance.
✅ Strict Quality Control – Ensures consistency in crystal structure and material properties.
✅ Third-Party Testing – Available upon request for verification of purity and orientation.

 

Lead Time & MOQ (Minimum Order Quantity)

🚀 Lead Time: 2-4 weeks, depending on order quantity and customization.
📦 MOQ: Contact us for specific requirements.

 

FAQs (Frequently Asked Questions)

❓ What is the typical lead time for tantalum single crystals?
✅ Standard lead time is 2-4 weeks, but it may vary depending on customization and order volume.

❓ Which orientation should I choose for my application?
✅ (100) orientation is ideal for semiconductor applications, (110) for mechanical strength, and (111) for thin-film applications.

❓ Can you provide custom sizes or shapes?
✅ Yes! We offer custom machining to meet your specific requirements.

 

Contact Us

📩 Need more details or a quote? Contact us today for expert assistance and customized solutions.

How to Choose the Product

🔹 Select the right orientation based on your application requirements.
🔹 Choose the appropriate size to fit your equipment specifications.
🔹 Consider custom machining for specialized applications.

 

Product Standards

ASTM B365 – Standard Specification for Tantalum and Tantalum Alloy Rods and Wires.

ASTM F560 – Standard Specification for Tantalum for Surgical Implants.

 

Production & Quality Control

✔ Advanced Growth Techniques – Precision-controlled crystal growth for high purity.
✔ X-ray Diffraction (XRD) Analysis – Ensures correct crystallographic orientation.
✔ Purity Testing – Conducted via ICP-MS and GDMS for 99.99% purity assurance.

 

Shipping & Delivery Information

🚚 Shipping Methods – Express, Air Freight, Sea Freight.
📦 Packaging – Vacuum-sealed to prevent oxidation, packed in protective cases for safe transit.
🌍 Worldwide Delivery – Fast shipping options available globally.

 

Environmental Impact & Sustainability

🌱 Eco-Friendly Production – Tantalum is recyclable and sourced responsibly.
♻ Sustainable Supply Chain – Committed to ethical sourcing and conflict-free materials.

 

Maintenance & Care Instructions

🔹 Store in a dry, inert atmosphere to prevent oxidation.
🔹 Handle with clean gloves to avoid contamination.
🔹 Avoid exposing to extreme mechanical stress.

 

Differentiation Between Products

Each tantalum single crystal is unique in orientation, purity, and size, ensuring suitability for diverse applications such as semiconductors, aerospace, and medical industries.

 

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Tantalum Single Crystal Specifications

Metal single crystal properties

State:	Single crystal
Crystal structure:	bcc
Production method:	Floating zone
Standard size:	diameter 6-12mm thickness 1-2mm
Orientation:	(100), (110) and (111)
Orientation accuracy:	<2°, <1°, <0.5° or <0.1°
Polishing:	as cut, one or two sides polished
Roughness of surface:	<0.03µm
Purity:	99.99%
Typical analysis (ppm):	Al < 1 C 80 Co < 3 Cu < 1 Fe 5 H < 10 N 90 O 120 S < 10 Si 25 Ta balance

Further Materials properties

Crystal structure:	(cell dimensions/pm), space group b.c.c. (a=330.29), Im3m
Density:	16.6 g/cm3
X-ray diffractions mass absorption coefficients:	CuKa 166 (µ/r) / cm2g-1 MoKa 95.4 (µ/r) / cm2g-1
Neutron scattering length:	0.691 b/10-12 cm
Thermal neutron capture cross-section:	20.6 sa / barns
Melting point:	2995.85 °C / 3269 °K
Boiling point:	5424.85±100 °C / 5698±100 °K
Molar volume:	10.87 cm3
Thermal conductivity:	57.5 [300 K] Wm-1K-1
Coefficient of linear thermal expansion:	6.6 x 10-6 K-1
Electrical resistivity:	12.45x10-8 [298 K] Wm
Mass magnetic susceptibility:	+1.07 x 10-8(s) kg-1m3
Young's modulus:	185.7 GPa
Rigidity modulus:	69.2 GPa
Bulk modulus:	196.3 GPa
Poisson's ratio:	0.342 GPa
Radii:	Ta5+ 64; Ta4+ 68; Ta3+ 72; atomic 143; covalent 134
Electronegativity:	1.5 (Pauling); 1.33 (Allred); 4.11 eV (absolute)
Effective nuclear charge:	3.30 (Slater); 9.53 (Clementi); 13.78 (Froese-Fischer)
Number of Isotopes (incl. nuclear isomers):	28
Issotope mass range:	159 -> 186

Biological Data

Biological role:	none
Toxic intake:	moderately poisonous by ingestion
Lethal intake:	LD50 (chloride, oral, rat)= 1900 mg kg-1
Hazards:	There are no cases of industrial poisoning caused by tantalum or its compounds. However, it is an experimental tumorigen.
Blood:	n.a., but low
Bone:	c. 0.03 p.p.m.
Liver:	n.a.
Muscle:	n.a., but low
Daily dietary intake :	0.001 mg
Total mass of element in average [70 kg] person:	c. 0.2 mg

Geological Data

Mineral	Formula	Density	Hardness	Crystal appearance
Columbite	(Fe, Mn)(Ta, Nb)2O6	a group of ores of mixed composition
Ferrotantalite	FeTa2O6	7.95	6 - 6.5	orth., black-brownish/black
Manganotantalite	(Fe, Mn)(Ta, Nb)2O6	6.76	6 - 6.5	orth., black-brownish/black
Microlite	(Na, Ca)2Ta2O6(O, OH, F)	6.42	5 - 5.5	cub., vitreous/resinous yellow
Samarskite	(Y, Ce, U, Fe)3(Nb, Ta, Ti)5O16	5.69	5 - 6	orth., vitreous/resinous black

Chemical Identifiers

Linear Formula	Ta
MDL Number	MFCD00011252
EC No.	231-135-5
Beilstein/Reaxys No.	N/A
Pubchem CID	23956
SMILES	[Ta]
InchI Identifier	InChI=1S/Ta
InchI Key	GUVRBAGPIYLISA-UHFFFAOYSA-N

Tantalum Single Crystal Properties (Theoretical)

Molecular Weight	180.94
Appearance	Silvery-gray solid
Melting Point	3017 °C
Boiling Point	5458 °C
Density	16.69 g/cm3 (20 °C)
Solubility in H2O	N/A
Crystal Phase / Structure	α: body-centered cubic (bcc) / β: tetragonal
Electrical Resistivity	131 nΩ·m (20 °C)
Electronegativity	1.5 Paulings
Heat of Fusion	36.57 kJ/mol
Heat of Vaporization	753 kJ/mol
Poisson's Ratio	0.34
Specific Heat	140 J/kg·K
Thermal Conductivity	57.5 W/m·K
Thermal Expansion	6.3 µm/m·K
Vickers Hardness	870–1200 MPa
Young's Modulus	186 GPa

 

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