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Discussion History

Chemicals, Gases and Reference Samples

Assembly

Oxide and carbonate powders are the precursors for YBa2Cu3O7 and the bismuth cuprates, with magnesium and boron for MgB2. Oxygen and argon supply the furnace and arc-melting atmospheres, liquid nitrogen cools samples, and known superconductors (a YBCO disk, a Bi-2223 bar, niobium, lead) check the measurement setups. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Chemicals, Gases and Reference Samples parts and their functions

17 top-level parts · 21 parts in total · full bill of materials below
Chemicals, Gases and Reference Samples parts diagram: 1 yttrium oxide powder, 2 barium carbonate powder, 3 Copper(II) oxide powder, 4 Bismuth(III) oxide powder, 5 strontium carbonate powder, 6 calcium carbonate powder, 7 Lead(II) oxide powder, 8 magnesium and boron powders, 9 weighing boats, 10 solvents (ethanol, isopropanol, acetone), 11 oxygen and argon cylinders, 12 liquid nitrogen, 13 YBCO levitation disk with magnet, 14 high-temperature superconductor bar or tape, 15 niobium foil, and 2 more. 21 parts in 17 top-level items.
Chemicals, Gases and Reference Samples parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Yttrium Oxide Powder 1× Supplies the yttrium for YBa2Cu3O7, the standard test compound, fired from Y2O3, BaCO3 and CuO in a 1:4:6 molar ratio. Core, 100 g
2 Barium Carbonate Powder 1× Supplies the barium for YBa2Cu3O7 and releases CO2 as it decomposes during calcination. Core, 250 g
3 Copper(II) Oxide Powder 2× Supplies the copper for YBa2Cu3O7 and for the bismuth cuprates. Core, 100 g
4 Bismuth(III) Oxide Powder 1× Supplies the bismuth for Bi2Sr2CaCu2O8 (Bi-2212) and Bi2Sr2Ca2Cu3O10 (Bi-2223). Useful, 250 g
5 Strontium Carbonate Powder 1× Supplies the strontium for the bismuth cuprates Bi-2212 and Bi-2223. Useful, 100 g
6 Calcium Carbonate Powder 1× Supplies the calcium for the bismuth cuprates Bi-2212 and Bi-2223. Useful, 100 g
7 Lead(II) Oxide Powder 1× Replaces about 10 to 20% of the bismuth to speed formation of the 110 K Bi-2223 phase. Useful, 50 g
8 Magnesium and Boron Powders 1× Supplies the elements for MgB2 (Tc 39 K), reacted at about 650 to 900 °C in argon or a sealed metal tube because magnesium vapor attacks bare quartz. Optional, set
9 Weighing Boats 1× Holds precursor powders on the balance and during transfer to the mortar. Core, pack of 500
10 Solvents (Ethanol, Isopropanol, Acetone) 3× Wets precursor powders for grinding and mixing (ethanol or isopropanol) and cleans dies, mortars and sample surfaces (acetone, isopropanol). Core, 1 L
11 Oxygen and Argon Cylinders 2× Supplies oxygen for the anneal that sets the oxygen content of YBa2Cu3O7 and argon for arc melting, intermetallic firing and purging. Core, cylinder
12 Liquid Nitrogen 1× Cools samples to 77 K for resistance measurements and the levitation check, and precools the cryostat. Core, 180 L
13 YBCO Levitation Disk with Magnet 1× Provides a known 90 K superconductor to confirm that the levitation check and the susceptibility coil respond before a new sample is tested. Core, set
14 High-Temperature Superconductor Bar or Tape 1× Provides a known transition (Bi-2223 near 108 to 110 K, REBCO near 90 K) for validating four-probe resistance against temperature. Useful
15 Niobium Foil 1× Checks the cold end of the resistance and susceptibility setups with its 9.2 K transition and supplies niobium for arc-melted intermetallics. Useful
16 Lead, Tin and Indium Metal 1× Checks thermometry at the 7.2 K transition of lead, and supplies tin for Nb3Sn and indium for pressed contact pads. Useful, set
17 Sample Vials, Sealing Film and Labels 1× Stores pellets, powders and offcuts between firings and measurements, sealed against humidity and labeled with composition and date. Core, set

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Build & assembly graph

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Bill of materials for Chemicals, Gases and Reference Samples

17 top-level lines · 17 rows shown · 21 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Yttrium Oxide Powder yttrium-oxide-powder 1× 1 · part
2 Barium Carbonate Powder barium-carbonate-powder 1× 1 · part
3 Copper(II) Oxide Powder copper-ii-oxide-powder 2× 2 · part
4 Bismuth(III) Oxide Powder bismuth-iii-oxide-powder 1× 1 · part
5 Strontium Carbonate Powder strontium-carbonate-powder 1× 1 · part
6 Calcium Carbonate Powder calcium-carbonate-powder 1× 1 · part
7 Lead(II) Oxide Powder lead-ii-oxide-powder 1× 1 · part
8 Magnesium and Boron Powders magnesium-and-boron-powders 1× 1 · part
9 Weighing Boats weighing-boats 1× 1 · part
10 Solvents (Ethanol, Isopropanol, Acetone) solvents-ethanol-isopropanol-acetone 3× 3 · part
11 Oxygen and Argon Cylinders oxygen-and-argon-cylinders 2× 2 · part
12 Liquid Nitrogen liquid-nitrogen 1× 1 · part
13 YBCO Levitation Disk with Magnet ybco-levitation-disk-with-magnet 1× 1 · part
14 High-Temperature Superconductor Bar or Tape high-temperature-superconductor-bar-or-tape 1× 1 · part
15 Niobium Foil niobium-foil 1× 1 · part
16 Lead, Tin and Indium Metal lead-tin-and-indium-metal 1× 1 · part
17 Sample Vials, Sealing Film and Labels sample-vials-sealing-film-and-labels 1× 1 · part

Where the chemicals, gases and reference samples is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Superconductor Materials Lab

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks