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  4. Sapphire window (viewing port), a highly airtight joint between ceramic and metal created using metallization and brazing technology (Kawaso Texel Co., Ltd.)
Sapphire window (viewing port), a highly airtight joint between ceramic and metal created using metallization and brazing technology-Sapphire window
Sapphire window (viewing port), a highly airtight joint between ceramic and metal created using metallization and brazing technology-Kawaso Texel Co., Ltd.

Sapphire window (viewing port), a highly airtight joint between ceramic and metal created using metallization and brazing technology
Kawaso Texel Co., Ltd.

About This Product

For applications requiring high airtightness Sapphire windows are made by bonding metal around a single crystal sapphire. Ideal for ultra-high vacuum viewing ports and for transmitting ultraviolet and infrared rays. Single crystal sapphire and surrounding metal are bonded by metallization.

■Metallization technology is also utilized in the sapphire window.

- The sapphire window is airtightly bonded using metallization technology and has excellent heat resistance, airtightness, and reliability. ・Airtightness: 1x10-10Pa・m3/sec

■Excellent heat resistance and airtightness

Sapphire windows are airtightly sealed through metallization and have excellent heat resistance and airtightness. It is used in analytical equipment under ultra-high vacuum.

■Sapphire is high purity single crystal alumina

Kawaso Texel metallizes using the fused titanium method, and since titanium diffuses into or reacts with ceramics, it is possible to metallize even high-purity alumina.

■Molybdenum manganese metallization method is a metallization technology that utilizes a reaction with glass components, mainly SiO2, contained in ceramics.

Alumina ceramics are expressed as 92%, 96%, or 99%, but as the purity increases, the content of SiO2, which is a glass component, decreases. The Mo-Mn method involves a reaction with SiO2, but the molten titanium method does not involve SiO2 and is also suitable for high-purity alumina.

■Meeting a variety of joining needs

・Please contact us regarding joining non-magnetic materials and sapphire. ・Please leave brazing and welding to various vacuum flanges to us. -Special sizes of sapphire and special flanges are also available. ・Please inquire about window materials other than sapphire.

■Standard specification product characteristics

Airtightness: 1x10-10Pa・m3/sec

■Products

・Sapphire window ・Sapphire window with vacuum flange

  • Product

    Sapphire window (viewing port), a highly airtight joint between ceramic and metal created using metallization and brazing technology

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1 Models of Sapphire window (viewing port), a highly airtight joint between ceramic and metal created using metallization and brazing technology

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Sapphire window (viewing port), a highly airtight joint between ceramic and metal created using metallization and brazing technology-Part Number-Sapphire window

Sapphire window

Available upon quote

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Kawaso Texel Co., Ltd.

  • Japan

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