Zone Refining High-Purity Germanium
The effects of various parameters on germanium purification by zone refining have been examined. These parameters include the germanium container and container coatings, ambient gas and other operating conditions. Four methods of refining are presented which reproducibly yield 3.5 kg germanium ingots from which high purity (|NA - ND| ≤2 × 1010 …
Production of High-Purity Germanium Ingots for Detector
Ingots of impure germanium approximately 60 cm long are held horizontally in a graphite boat as a radio frequency (RF) coil surrounding the quartz tube melts a small vertical section of the ingot.
Purification of germanium crystal by zone-refining technique
Zone refining is a purification technique of metal materials, which was developed at Bell Telephone Laboratories in the early of 1950s. In zone-refining of high-purity germanium crystals, the influential factors include vacuum level, container of germanium ingot, ambient gases, speed of zone travel, the ratio of ingot length to molten zone length, etc.
Production of High-Purity Germanium Ingots for Detector …
The growth of high-purity germanium crystals is needed for planned DUSEL experiments. Many steps are required convert bulk germanium into a gamma-ray spectrometer. The electronic-grade polycrystalline germanium starting material is zone refined in a synthetic silica crucible inside a graphite boat enclosed within a quartz tube filled with hydrogen. …
China Zone-refined Germanium Ingot, Zone-refined Germanium Ingot
China Zone-refined Germanium Ingot manufacturers - Select 2023 high quality Zone-refined Germanium Ingot products in best price from certified Chinese Wholesale Zone-refined Germanium Ingot, suppliers, wholesalers and factory on Made-in-China.
Characterization of polycrystalline zone-refined ingots of …
Characterization of polycrystalline zone-refined ingots of high-purity germanium ☆ Author links open overlay panel G. Scott Hubbard, Eugene E. Haller, William L. Hansen Show more
Germanium ingot, zone refined, 99.9999% (metals …
Germanium ingot, zone refined, 99.9999% (metals basis), electrical resistivity: 40 ohm-cm, Thermo Scientific Chemicals, Quantity: 24 g | Fisher Scientific. Structure Search.
Germanium ingot
Germanium ingot Item: Germanium Ingot Zone-refined (metal Germanium) Molecular Formula: Ge Specification: Silver grey brittle metals in trapezium-like bars Purity Ge content ≥ 99.999% Resistivity ≥ 47Ω·cm (20±0.5C) Packaging: Inner Packaging: plastic covering and ed plastics as pads Outside Packaging: Carton Gross Weight: 17kg/Box (can …
Germanium Ingot, zone refined, 95% N type min., …
Form: Electrical Resistivity: 40 ohm-cm Shop Germanium Ingot, zone refined, 95% N type min., 99.9999% (Metals basis, 95% Ntype min.), Alfa Aesar™ at Fishersci
Investigation of influential parameters for zone-refinement …
In zone-refining of high-purity germanium crystals, the influential parameters include vacuum level, container of germanium ingot, ambient gases, zone travel speed, zone length, etc. In the present work, the influences of zone length and zone travel speed on the purity level of the zone-refined ingot have been investigated with many experiments. …
Effective Purification of Germanium Obtained from …
to detector germanium, it should even be much better refined. As a main method for germanium purification, zone melting is used. It makes it possible to prepare germanium, which is one of the most chemically pure materials known. However, during zone melting, each germanium ingot must be subjected to repeated purification, i.e.
Germanium Metal
Zone refining germanium involves passing raw material through a hot zone that creates high purity molten metal. Impurities collect in the molten material and are pushed back as …
Germanium
Teck supplies the following grades of germanium: Germanium Dioxide (GeO₂): ... Teck supplies indium ingots in 1kg, 3kg and 10kg bars to meet your requirements. ... Teck's ULA lead sources and ULA tin sources are refined to exceed semiconductor grade standards. A dedicated low alpha lead production facility was commissioned in 1998 to handle ...
Purification of germanium crystal by zone-refining technique
In this paper, we report the results from the zone-refined germanium ingots produced at the University of South Dakota. Discover the world's research. 25+ million members;
Used for Electronics and Solar Energy Applications Pure Zone-Refined …
Used for Electronics and Solar Energy Applications Pure Zone-Refined Germanium Ingot, Find Details and Price about Germanium Ingot Non-Ferrous Metal from Used for Electronics and Solar Energy Applications Pure Zone-Refined Germanium Ingot - Anhui Fitech Materials Co., Ltd.
Germanium Metal | Zone Refined Ingots Supplier
Zone refining was developed for germanium metal in the 1950s when it was used in early semiconductors. Zone refined germanium ingots are the most commercial form of germanium metal and are used in the production of infrared and specialty optical lenses, as well as in in semiconductor and solar cell substrates. SMI Ltd. is a supplier of 99.999% ...
Germanium ≥99.9999% (metals basis) (N type ≥ …
Germanium ≥99.9999% (metals basis) (N type ≥ 95%), ingot, zone refined 95% N type minimum. Supplier: Thermo Scientific. Ratings: (No Reviews) Formula: Ge. MW: 72.61 …
Germanium ingot, zone refined, 99.9999% (metals basis), …
Form: Electrical Resistivity: 40 ohm-cm Shop Germanium ingot, zone refined, 99.9999% (metals basis), electrical resistivity: 40 ohm-cm, ... Silver-colored ingot: Chemical Name or Material: Germanium: Documents Accessories and Spare Parts RUO – Research Use Only . missing translation for 'provideContentCorrection' ...
Germanium Properties, History and Applications
Germanium powder is cast into bars at temperatures over 1720.85 °F (938.25 °C). Zone-refining (a process of melting and cooling) the bars isolates and removes impurities and, ultimately, produces high …
Zone Refinement of Germanium Crystals
germanium ingots to ~1011 cm-3 level is an essential precursory step to produce detector grade germanium crystals. The zone refining technique was developed at Bell …
VWDOV Radiative Properties of Semiconductors
germanium ingot is refined by repeatedly moving an inductively-melted liquid zone from one end of the ingot (head) to the other (tail). After multiple zone-refining passes, the impurities will accumulate at the ends of the ingot depending on whether the segregation coefficient is less than
Export controls on gallium and germanium items …
Raw and refined gallium (8112.9290 and 8112.9990) Raw and refined germanium (8112.9210 and 8112.9910) Year 2022: 94.40 tons (USD 35.79 million) ... Zone refined germanium ingot. 8112.9210.90. 3. Zinc Germanium Phosphide (including but not limited to crystals, powder, shredded materials, etc.)
Investigation of influential factors on the purification …
In order to properly zone refine high‐purity germanium crystal... Investigation of influential factors on the purification of zone‐refined germanium ingot - Yang - 2014 - Crystal Research and Technology - …
Refined Obsidian Ingot
The Refined Obsidian Ingot is an ingot created by placing Refined Obsidian Dust into an Osmium Compressor fueled with Liquid Osmium (from Osmium Ingots).It is used to create the most durable and powerful tools and armor in the game (see Obsidian Armor and Obsidian Tools) as well as a few other items.However, it also the most expensive to …
Germanium
Germanium Granule is reprocessed by high purity zone refined Germanium ingot in the vacuum and clean workshop. Its purity is 99.999% min with size range of 1-40 mm. Sino Santech manufactures evaporation grade germanium metal granule, the size of 1mm to 10 mm pieces are in excess of 99.999% pure and can easily be used in vacuum chamber …
Germanium | Ge
Germanium Granule is reprocessed by high purity zone refined Germanium ingot in the vacuum and clean workshop. Its purity is 99.999% min with a size range of 1-40 mm. Germanium Ingot. Zone refining germanium involves passing raw material through a hot zone that creates high-purity molten metal. Impurities collect in the molten material and …
Used in Infrared Optical Industry Silver White …
1.Description: Germanium ingot 2.Packing: Wooden Crate 3.HS Code: 8112991000 4.Zone-refined Germanium Ingots(Ge) 5N 5.Storage: It should be stored in a cool, ventilated, dry, clean warehouse without …
What are Gallium and Germanium and which countries are …
According to USGS, high-purity refined gallium production last year was estimated at about 290,000 kgs, a 16% increase from 250,000 kgs in 2021. ... China's germanium ingot price was last at 9,150 ...
Germanium Metal | Zone Refined Ingots Supplier
Description: Lustrous silver metal. Purity: ≥ 99.999% Packing: 500g-1500g Ingots. CAS No: . Germanium Zone Refined Ingots Price. Zone Refined Germanium Metal …
