Ybco

When procuring YBCO, the most critical parameter is the Critical Temperature (Tc), which should typically be around 90K to 93K for high-quality samples. You must also verify the Critical Current Density (Jc), especially if purchasing in tape or wire form (2G HTS), as this determines the power-carrying capacity. Ensure the purity level is at least 99.9% for raw powders to avoid phase impurities that degrade superconducting properties.

YBCO is primarily used for High-Temperature Superconducting (HTS) magnets, power cables, and fault current limiters. If your application involves Magnetic Levitation (Maglev) or Quantum Locking demonstrations, ensure the material is processed into a single-domain bulk to maximize trapped magnetic fields. For research purposes, specify whether you need thin films, bulk pellets, or 2G superconducting tapes.

Suppliers should adhere to ISO 9001 for manufacturing consistency. Since YBCO contains Barium, it must comply with RoHS (Restriction of Hazardous Substances) regulations for electronic components. Request a XRD (X-ray Diffraction) analysis report to confirm the orthorhombic crystal structure and a SQUID (Superconducting Quantum Interference Device) magnetometry report for precise Tc validation.

For 2G HTS tapes, check the substrate material (usually Hastelloy or Stainless Steel) and the capping layer (Silver or Copper). The bending radius is a vital mechanical spec; high-quality tapes should maintain performance at a bending diameter of 10mm to 30mm. Ensure the tape width (typically 4mm or 12mm) is compatible with your winding equipment.

The main risks include moisture sensitivity and mechanical fragility. YBCO reacts with atmospheric CO2 and water vapor, which can lead to surface degradation (aging). Ensure the supplier uses vacuum-sealed moisture-proof packaging and provides shock-absorbent crating for bulk ceramics to prevent micro-cracks during international transit.

Focus on batch consistency and long-term stability. Request a pre-shipment sample from the specific production lot you intend to buy. Negotiate a tiered pricing structure where the price per meter (for tapes) or per gram (for powder) drops by 15-20% for volume orders. Always clarify the lead time, as specialized sintering processes can take several weeks.

Utilize Secured Trading Services on Made-in-China.com to ensure payment is only released upon confirmation of delivery. For large-scale industrial orders, insist on a Third-Party Inspection (such as SGS or Intertek) to verify the chemical composition and superconducting transition temperature before the goods leave the factory.

YBCO may fall under Dual-Use Goods regulations in certain jurisdictions due to its application in advanced energy and military sectors. Check the HS Code (typically 3824.99 or 2846.90) against your country's import list. Ensure the Material Safety Data Sheet (MSDS) is included in the shipping documents to facilitate smooth customs clearance regarding chemical safety.