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Desenvolvimento e otimização do vidro borossilicato no Paquistão

Desenvolvimento e otimização do vidro borossilicato no Paquistão

Muhammad Saadet Khan / Phool Shahzadi / Shahzad Alam

94,55 €
IVA incluido
Disponible
Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Química
ISBN:
9786209336270
94,55 €
IVA incluido
Disponible

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Sobre IBD

Foi desenvolvida uma composição de vidro borossilicato dopado com fluoreto de sódio e silício, mais refinada e livre de sementes, bolhas e cordões. A adição do composto de fluoreto acelerou a fusão do vidro, mas reduziu a viscosidade e a tensão superficial. Foram feitas muitas variações na composição do vidro borossilicato padrão (7740) para desenvolver uma nova composição que fosse fundida de acordo com as condições economicamente disponíveis. O forno elétrico com sistema de agitação era muito caro, o que não era viável para o Paquistão desenvolver um vidro tão caro. Assim, um forno a gás sem sistema de agitação a uma temperatura comparativamente mais baixa foi usado para a fusão desses vidros, em vez do forno elétrico. Este vidro foi desenvolvido pela primeira vez no Paquistão em escala laboratorial, com os recursos e instalações disponíveis no nosso país.

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