Glass-to-metal seal formation of lithium tungstate. Due to its low thermal expansion coefficient, matched to glass, tungsten is frequently used for glass-metal bonds. Tungsten forms satisfying bonds with glasses with similar thermal expansion coefficient such as high-borosilicate glass. The surface of both the metal and glass should be smooth, without scratches. Tungsten has the lowest expansion coefficient of metals and the highest melting point. 304 Stainless steel forms bonds with glass via an intermediate layer of chromium(III) oxide and iron(III) oxide. Further reactions of chromium, forming chromium silicide dendrites, are possible. The thermal expansion coefficient of steel is however fairly different from
Otherwise Known as Sheila the Great painting the backdrop of the camp's production of "Peter Pan" (in which Libby plays Captain Hook, to her misery). Sheila believes that her fearless masquerade is effective, but her beliefs are proven false after the guests at her sleepover party write otherwise in a slam book activity. Despite the brawl that ensues between the agitated girls, devastated by the insults written in each other's books, their friendship, nevertheless, continues, and Sheila slowly overcomes her fears (albeit not entirely) little by little. As the summer draws to a close with a barbecue party, she is unshaken at the thought of her