Tube furnace
A tube oven bụ ihe eletrik na-ekpo ọkụ nke a na-eji eme syntheses na purifications nke inorganic compounds na mgbe ụfọdụ na organic synthesis. Otu atụmatụ nwere ike ịnwe oghere cylindrical gbara gburugburu site na coils na-ekpo ọkụ nke a na-etinye na matrix na-ekpuchi okpomọkụ. Enwere ike ịchịkwa okpomọkụ site na nzaghachi sitere na thermocouple. Igwe ọkụ ndị ọzọ dị mgbagwoju anya nwere mpaghara okpomọkụ abụọ (ma ọ bụ karịa) bara uru maka nnwale njem. Ụfọdụ ndị na-achịkwa okpomọkụ dijitalụ na-enye interface RS-232, ma na-enye onye ọrụ ohere ịhazi akụkụ maka ojiji dị ka ramping, sucking, sintering, na ndị ọzọ. Ihe ndị dị elu na ihe ndị na-ekpo ọkụ, dị ka 2" href="./Molybdenum_disilicide" id="mwEQ" rel="mw:WikiLink" title="Molybdenum disilicide">molybdenum disilicide (MoSi2) nke a na-enye na ụdị ụfọdụ nwere ike ịmepụta okpomọkụ na-arụ ọrụ ruo 1800 °C. Nke na-eme ka ngwa ndị ọzọ dị mgbagwoju anya dị mfe. Ihe ndị a na-ahụkarị maka tubes mmeghachi omume gụnyere alumina, Pyrex, na quartz a gwakọtara agwakọta, ma ọ bụ n'ihe gbasara ihe na-emebi emebi, enwere ike iji tubes molybdenum ma ọ bụ tungsten mee ihe.
Emepụtara ọkụ tube ahụ n'ime afọ iri mbụ nke narị afọ nke 20 ma jiri ya rụpụta filamentị seramiiki maka oriọna Nernst na ọkụ.[1]
Ihe osise
[dezie | dezie ebe o si]Ihe atụ nke ihe eji emepụta site na iji ọkụ ọkụ bụ superconductor YBa2Cu3O<sub id="mwJw">7</sub>. 3 na-eme ka ngwakọta nke CuO, BaO, na Y2, nke dị n'ụgbọ mmiri platinum ma ọ bụ alumina dị ọkụ n'ime ọkụ ọkụ na ọtụtụ narị ogo n'okpuru ikuku Oxygen. 'otu aka ahụ, a na-akwadebe tantalum disulfide n'ime ite ọkụ na-esote mkpocha, kwa n'ime ọkụ ọkụ na-eji usoro nke mbufe mmiri. N'ihi nnweta nke anwụrụ ọkụ, ụgbọ mmiri mmiri na-esi ísì ụtọ aghọwo usoro a ma ama ọ bụghị naanị na ụlọ ọrụ (lee usoro van Arkel-de Boer) kamakwa na ụlọ nyocha.
A pụkwara iji ọkụ ọkụ tube mee ihe maka mmeghachi omume thermolysis, gụnyere ma ọ bụ organic ma ọ bụ inorganic reactants. Otu ihe atụ dị otú ahụ bụ nkwadebe nke ketene nke nwere ike were ọkụ tube n'ime ' oriọna ketene'. Flash vacuum pyrolysis na-ejikarị tube quartz fused, nke a na-ejikarị quartz ma ọ bụ seramiiki juru, nke a na-ekpo ọkụ na okpomọkụ.
Edensibia
[dezie | dezie ebe o si]- ↑ Harker (December 1905). "On a New Type of Electric Furnace, with a Redetermination of the Melting-Point of Platinum". Proceedings of the Royal Society A 76 (507): 235–249. DOI:10.1098/rspa.1905.0023.