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v-wang金蟲 (小有名氣)
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[交流]
【請教】石英晶體和石英玻璃有什么區(qū)別? 已有7人參與
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| 石英晶體和石英玻璃有什么區(qū)別?為什么一種是晶態(tài),另一種則是玻璃態(tài)?石英玻璃分幾種? |
無機非材料 |
版主 (文壇精英)
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石英玻璃是一種只含二氧化硅單一成份的特種玻璃,按純度分為高純、普通和摻雜三類。 水晶是一種無色透明的石英結(jié)晶體礦物。它的主要化學成分是二氧化硅,當二氧化硅結(jié)晶完美時就是水晶; 石英是一種物理性質(zhì)和化學性質(zhì)均十分穩(wěn)定的礦產(chǎn)資源,晶體屬三方晶系的氧化物礦物,即低溫石英(a-石英),是石英族礦物中分布最廣的一個礦物種。廣義的石英還包括高溫石英(b-石英)。石英塊又名硅石, 主要是生產(chǎn)石英砂(又稱硅砂)的原料, 也是石英耐火材料和燒制硅鐵的原料。 至于“石英水晶”的說法沒有聽說過 |

鐵桿木蟲 (正式寫手)
木蟲 (著名寫手)

木蟲 (著名寫手)
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石英玻璃是一種只含二氧化硅單一成份的特種玻璃,按純度分為高純、普通和摻雜三類。 水晶是一種無色透明的石英結(jié)晶體礦物。它的主要化學成分是二氧化硅,當二氧化硅結(jié)晶完美時就是水晶; 石英是一種物理性質(zhì)和化學性質(zhì)均十分穩(wěn)定的礦產(chǎn)資源,晶體屬三方晶系的氧化物礦物,即低溫石英(a-石英),是石英族礦物中分布最廣的一個礦物種。廣義的石英還包括高溫石英(b-石英)。石英塊又名硅石, 主要是生產(chǎn)石英砂(又稱硅砂)的原料, 也是石英耐火材料和燒制硅鐵的原料。 |

金蟲 (小有名氣)
金蟲 (小有名氣)
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從google上搜到的解釋。簡言之,石英玻璃就是石英晶體先升溫到2000度然后冷卻生成的玻璃態(tài)物質(zhì)。 Fused quartz and fused silica are types of glass containing primarily silica in amorphous (non-crystalline 非晶態(tài)) form. They are manufactured using several different processes. Note that glasses formed by the traditional 'melt-quench' methods (heating the material to melting temperatures, then rapidly cooling to the solid glass phase), are often referred to as 'vitreous'(玻璃態(tài)), as in 'vitreous silica'. The term 'vitreous' is synonymous with 'glass', when used in the melt-quench context. Fused quartz is manufactured by melting naturally occurring quartz crystals of high purity at approximately 2000°C, using either an electrically heated furnace (electrically fused) or a gas/oxygen-fuelled furnace(爐子) (flame fused). Fused quartz is normally transparent. The optical and thermal properties of fused quartz are superior to those of other types of glass due to its purity. For these reasons, it finds use in situations such as semiconductor fabrication and laboratory equipment. It has better ultraviolet transmission than most other glasses, and so is used to make lenses and other optics for the ultraviolet spectrum. Its low coefficient of thermal expansion also makes it a useful material for precision mirror substrates. Fused quartz can also form naturally. The naturally occurring form is a metamorphic rock known as quartzite(石英巖). An increase in heat causes the crystals within the quartz to become fused together. An important distinction is that quartzite is not necessarily an amorphous form. |
禁蟲 (小有名氣)
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