Vycor

Japanese: Vycor
Vycor

...Silica glass consisting only of SiO2 is the best in terms of heat resistance, but due to the high manufacturing costs, various types of heat-resistant glass are produced. Representative examples include Vycor (a registered trademark of Corning Inc., USA), which was developed to easily produce glass with a composition as close as possible to that of silica glass; borosilicate glass, which reduces the amount of alkali and alkaline earth elements that cause a decrease in heat resistance and improves the difficulty of melting by adding B2O3 ; and aluminosilicate glass, which introduces alkaline earth elements but adds Al2O3 to make the glass structure closer to that of silica glass. The representative compositions are shown in the table below.

*Some of the terminology used to refer to "Vycor" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…SiO2成分のみからなる石英ガラスが耐熱性の面からは最良であるが,製造コストが高いため種々の耐熱ガラスが作られている。すなわち,石英ガラスにできるだけ近い組成のガラスを容易に製造することを目的として開発されたバイコールVycor(アメリカのコーニング社の登録商標),耐熱性低下の原因となるアルカリ,およびアルカリ土類元素の量を減少させ,溶融が困難になる点をB2O3成分を添加することによって改良したホウケイ酸系ガラス,またアルカリ土類元素を導入しつつも,ガラス構造を石英ガラスに近づけるためにAl2O3を添加したアルミノケイ酸ガラスなどが代表的なものである。表にその代表的組成を挙げる。…

※「Vycor」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

<<:  Vysshee Voenno-Morskoe Uchilishche

>>:  Vyatka

Recommend

Sakai Magistrate - Sakai Bugyo

One of the Edo Shogunate's distant province m...

Wild West Show

The Buffalo Bill Show was organized in 1883 by the...

Oigawa Plain

…It originates on the southern slope of Ainodake ...

Square harp - Kakugataharp

…This type spread throughout Asia and Africa. Nex...

Champagne - Champagne (English spelling) French

Sparkling wine made in the Champagne region of Fr...

Honji Suijaku

It is a concept based on the so-called Shinbutsu ...

Sappa (Japanese shad) - Sappa (English spelling)

A marine fish of the Clupeidae family (illustratio...

Jaquet-Droze and his son - Jaquet-Droze

A father and son duo known for making automata in ...

Treaty of Hue

Protectorate treaties concluded between France and...

Herminium monorchis (English spelling) Herminiummonorchis

… [Ken Inoue]. … *Some of the terminology that me...

Legal code compilation - Houtenhensan

It refers to the systematic and organized creation...

Fujikawa Yu

A medical scientist and medical historian. Born o...

Broadside ballad

… [Hiroshi Sugiura] [English Ballads] Until aroun...

Transitional epithelium

…Also, when the base side of the cells reaches th...

Jungo

…So, the unit of area has long been the square of...