VERY HIGH THERMAL CONDUCTIVITY 1.050" O.D. BERYLLIUM OXIDE DISK No.: 539

Description: VERY HIGH THERMAL CONDUCTIVITY HIGH PURITY BERYLLIA CERAMIC CYLINDER HEAT SINK 1.050"O.D. x 0.062" THICK No.: 539 No.: 539 Do not buy prior to reading the entire listing, Specifically the WARNING and the INDEMNIFICATION sections in RED. You are buying ONE (1) each of a Very High Thermal Conductivity High Purity Beryllia Ceramic Cylinder Heat Sink. They are in mint new condition. They are made from 99.5% purity Beryllium Oxide (BeO) which of course is Beryllia. Generally the balance of composition for this purity Beryllia material is a mix of Silicon Dioxide (SiO2) which is Silica and Magnesium Oxide (MgO) which is Magnesia. This material has very high thermal conductivity, very high stiffness, very good corrosion resistance to chemicals at high temperature, and very high refractoriness or use temperature. It may be used for a variety of electrical, mechanical, and thermal applications. They may be used as setter plates for firing parts in a kiln. They may be used for high temperature furnaces and as high temperature refractory setters. Beryllium Oxide (BeO), commonly called Beryllia, is a unique ceramic material that will serve double duty as both an electrically insulating material and a heat sink by virtue of its high electrical resistivity and very high thermal conductivity. Beryllia is used extensively in high power semiconductor parts, RF and Microwave power packages, laser diode sub mounts, high power laser bores, thermocouple tubing and numerous other applications. Beryllia is an essential material for these applications because no other materials with the exception of pure Diamond will work as well, from the perspective of thermal transfer. The health and safety issues that surround Beryllia has been clarified with the recognition by the Defense Electronic Supply Center, a unit of the US Department of Defense, that beryllia is completely safe when handled in the solid ceramic form. According to the DESC bulletin, “hazards occur only with the inhalation of fine airborne particles of BeO, which are smaller than 10 microns and which may be encountered during basic manufacturing processes”. Be sure to view all photos as they are an integral component of the item description. The specifications for these components are as follows: Outside Diameter: Approximately 1.050”+/-0.002" (26.6 mm) Thickness: Approximately 0.062”+/- 0.005" (1.5 mm) Please Note: These are precision technical ceramic components. There camber specification 0.001”/inch for this item. They are relatively flat. Specific Gravity or Density: 2.85 g/cm3 Water Absorption or Porosity: 0% Fusion Temperature or Melting Temperature: 2450°C or 4442 °F Maximum Working Temperature: 2000 °C or 3632 °F Thermal Conductivity: 265 W/m* K (minimum) Specific Heat: 0.25 calorie/g*K (25 J/mol K) Expansion Coefficient or CTE: 3.5 x 10-6 inches/°C (from 25 - 300°C) Expansion Coefficient or CTE: 8.0 x 10-6 inches/°C (from 25 - 1000°C) Hardness: 60 on Rockwell 45N Flexural Strength: 35 kpsi (242MPa.) Tensile Strength: 20kpsi (138MPa.) Compressive Strength: 225kpsi (1.55GPa.) Modulus of Elasticity: 50 x 106 psi (350 GPa.) Electrical Resistivity at 20 C: 10¬15 Ohm*cm Dielectric Constant: 6.6 @ 1M Hz, 6.7 @ GHz Dissipation Factor: 0.0003@ 2 MHz, 0.0009 @ 10 GHz These components were not specifically manufactured for an individual application; therefore be sure to check the dimensional descriptions carefully for your application. Future returns or requests for refunds, because of some "fit" issue or the like will not be honored. Please check the other Beryllia component variants that are available in my listings for the model or models that best fits your requirement. Your imagination is the only limiting factor in the spectrum of possible applications for these components and materials. If you are not conversant in the use, hazards, and handling of Beryllia materials, it is recommended that you seek the counsel of those experienced in the science and technology of the processing and uses of Beryllia. In purchasing this material, you are attesting to having this knowledge beforehand and thereby assume all liabilities for your uses and the responsive consequences of the material outcome. WARNING: Danger - Inhalation of dust or fumes may cause serious chronic lung disease. This material contains Beryllium. Overexposure to Beryllia dust by inhalation may cause Berylliosis, a serious chronic lung disease. Hazard Communication Requirements of the Occupational Safety & Health Administration require that this material be stated as a potential carcinogen in either the International Agency for Cancer Research Monograph Series or the National Toxicology Program Annual Report on Carcinogens. Beryllium has been so listed. See Attached (MSDS) Material Safety Data sheet which accompanies your orders for further details concerning OSHA standards and precautionary measures. In purchasing these materials you are agreeing that you understand the risks in handling and using these materials, and will use appropriate safeguards when working with this material, and relieve the seller of any liabilities from the misuse or resulting health issues you may experience as a result of your purchase of this material. If you require additional technical information, design, or application engineering consultation, feel free to contact us. As a materials scientist with four decades experience in high temperature processing, ceramics, aerospace, microwave, dentistry, and jewelry manufacture it will be possible to provide you with creative and imaginative approaches to your requirements. Feel free to ask any questions you may have regarding this item early. Use PayPal only. Please complete payment transactions within 3 days. Items are generally shipped via USPS first class mail with delivery confirmation. Ask about shipping costs to your country. Feedback is provided for all buyers. We will appreciate yours as well. We strive to maintain excellent customer service; and are able to solve virtually any issues you may have. Every effort to provide the most accurate information about this item and every appropriate precaution in packaging this item is made, to assure that your highest expectations and satisfaction are met, and are exercised to meet this requirement for excellence. In winning this auction or purchasing this item you are agreeing that you will first provide the seller every opportunity to provide redress or resolution to any issues you many have concerning this item, prior to leaving any negative feedback about the seller or the item. INDEMNIFICATION The Buyer represents and warrants to Advanced Ceramic Esoterica, (AMPS, LLC- Advanced Microwave Processing Systems, LLC), (hereinafter defined as the Seller), that from the Buyer’s own review and study, the Buyer is fully aware of , and knowledgeable about; (a) the health hazards associated with Beryllium and Beryllium oxide powders and chemicals; (b) the industrial hygiene controls necessary to protect themselves and their workers for hazards associated with Beryllium and Beryllium Oxide; (c) the need to adequately warn of the health hazards associated with Beryllium and Beryllium Oxide; and (d) the governmental regulations regarding the use of Beryllium products. The Buyer further represents and warrants that, although additional warnings regarding the health hazards posed by Beryllium are unnecessary given its own knowledge, that the Seller has fully and adequately warned Buyer of such health hazards. The Buyer agrees to indemnify and hold harmless the Seller, its subsidiaries, affiliates, successors, assignees, directors, officers, employees, agents, and representatives (collectively “Seller”) against any demands, claims, lawsuits, liability, damage, judgement, expense or loss (including legal fees, expenses and costs) relating in any way to Beryllium (including without limitation its use, sale or supply; method of fabrication by the Buyer; its quality of merchantability; health hazards associated with its use, sale or any warnings or protective devices) which the Seller may incur or become subject to by reason of its sale, supply or shipment of Beryllium-containing products to the Buyer, including, without limitation, any claims or lawsuits by employees of the Buyer or by any other third party. In the event any such demand, claim or lawsuit is brought against the Seller, Buyer will fuller cooperate with the Seller in defending such demand, claim, or lawsuit. No.: 539

Price: 28 USD

Location: Baldwinsville, New York

End Time: 2024-08-15T23:06:29.000Z

Shipping Cost: N/A USD