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For completely accurate results, the crucible is handled with clean tongs because fingerprints can add a weighable mass to the crucible. Porcelain crucibles are hygroscopic, i. e. they absorb a bit of weighable moisture from the air. For this reason, the porcelain crucible and lid is also pre-fired (pre-heating to high temperature) to constant ...
The crucibles were made by firing kaolinitic clay at temperatures greater than 1100°C, forming mullite. Mullite is an aluminum silicate only described in the 20th century and is responsible for the excellent properties of the Hessian crucible. [1] [2] Main production centre of the Hessian crucibles was the village of Großalmerode.
The second breakthrough was the discovery of the stabilizing effect of aluminum fluoride in fluorozirconate glasses. The initial systems were fluorozirconates with ZrF 4 as the primary constituent (>50 mol%), BaF 2 main modifier (>30 mol%) and other metal fluorides LaF 3 , AlF 3 added as tertiary constituents, to increase glass stability or ...
Mass Effect: Inquisition is an on-line comic (8 pages) written by Mac Walters. Taking place after Mass Effect 2, the plot follows Captain Armando-Owen Bailey during his investigation of Executor Venari Pallin and corruption within C-Sec. It was released October 26, 2010 through USA Today. [66] Mass Effect: Evolution is a four-part comic book ...
Ceramic BN crucible. Hexagonal BN (h-BN) is the most widely used polymorph. It is a good lubricant at both low and high temperatures (up to 900 °C, even in an oxidizing atmosphere). h-BN lubricant is particularly useful when the electrical conductivity or chemical reactivity of graphite (alternative lubricant) would be problematic.
The Citadel is a fictional space station and megastructure in the Mass Effect franchise of video games developed by BioWare.An ancient station supposedly constructed by the long-dead Protheans, it serves as the hub of interstellar politics and society in the Milky Way galaxy due to its status as the capital of the Citadel Council, the dominant galactic polity within the Mass Effect universe.
Mass Effect Legendary Edition is a compilation of the video games in the Mass Effect trilogy: Mass Effect (2007), Mass Effect 2 (2010), and Mass Effect 3 (2012). Developed by BioWare and published by Electronic Arts, the compilation was released on May 14, 2021, for PlayStation 4, Windows, and Xbox One.
Mass Effect: Foundation is a Canadian science fiction comic book series published by Dark Horse Comics featuring several secondary characters from the original Mass Effect trilogy. The fifth Mass Effect comic series to be produced, Foundation is a tie-in to 2013's Mass Effect 3: Citadel downloadable content , the story of Foundation explores ...