Video: Puas yog tantalum lom lossis muaj kev phom sij?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Tantalum pentoxide yog cov khoom tsis muaj xim uas ua rau cov oxidizers thiab tuaj yeem ua rau tawg thiab hluav taws. Cov xwm txheej ntawm kev lom vim raug tsis tau tshaj tawm, tab sis tantalum yog nruab nrab tshuaj lom , thiab yog tias kev ua haujlwm cuam tshuam nrog kev txiav, yaj, lossis sib tsoo, cov pa taws ntau lossis plua plav tuaj yeem tso tawm rau saum huab cua.
Kuj paub, tantalum yog dab tsi?
Tantalum yog ib qho tsis tshua muaj, nyuaj, xiav-grey, lustrous hloov pauv hlau uas muaj corrosion-resistant heev. Nws yog ib feem ntawm pab pawg neeg hlau refractory, uas yog dav siv los ua cov khoom me me hauv cov alloys. Cov tshuaj inertness ntawm tantalum ua rau nws muaj txiaj ntsig zoo rau cov khoom siv hauv chav kuaj thiab hloov pauv platinum.
Ib yam li ntawd, lub cev thiab tshuaj lom neeg ntawm tantalum yog dab tsi? Nws muaj ib melting point ntawm 2, 996 ° C (5, 425 ° F) thiab a kub point 5, 429 ° C (9, 804 ° F). Nws muaj peb lub siab tshaj plaws melting point ntawm tag nrho cov ntsiab lus, tom qab tungsten thiab rhenium. Tantalum qhov ceev yog 16.69 grams ib cubic centimeter.
Tib neeg kuj nug, qhov twg Tantalum pom?
Tantalum tshwm sim nyob rau hauv cov ntxhia columbite-tantalite. Nws yog feem ntau pom nyob rau hauv Australia , Brazil , Mozambique, Thaib, Portugal, Nigeria, Zaire thiab Canada . Sib cais tantalum los ntawm niobium yuav tsum tau electrolysis, txo cov poov tshuaj fluorotantalate nrog sodium los yog reacting carbide nrog oxide.
tantalum ntau npaum li cas?
Qhov chaw: Tantalum tsis pom muaj dawb hauv cov xwm txheej tab sis hauv cov zaub mov xws li columbite thiab tantalite. Minerals uas muaj tantalum feem ntau kuj muaj niobium. Isotopes: Tantalum muaj 31 isotopes uas nws ib nrab-lub neej paub, nrog cov lej loj ntawm 156 txog 186.
Pom zoo:
Dab tsi yog lub sij hawm ncua sij hawm relay uas siv lub sij hawm RC Circuit Court?
Kev tsim tshiab ntawm lub sij hawm ncua relays siv hluav taws xob circuits nrog resistor-capacitor (RC) tes hauj lwm los tsim lub sij hawm ncua, ces energize ib txwm (instantaneous) electromechanical relay coil nrog cov hluav taws xob Circuit Court cov zis
Ib tus yuam sij tseem ceeb puas tuaj yeem muaj ob tus yuam sij txawv teb chaws?
Nws yog qhov zoo kawg nkaus kom muaj ob kab ntawv tseem ceeb txawv teb chaws xa mus rau tib lub ntsiab lus tseem ceeb hauv ib lub rooj sib txawv vim tias txhua tus nqi tseem ceeb txawv teb chaws yuav siv cov ntaub ntawv sib txawv hauv cov lus hais
Puas yog Prospect txoj kev xav yog kev piav qhia lossis tus lej ntawm kev txiav txim siab hauv qhov tsis paub tseeb?
Nws tau sib cav tias kev piav qhia kev xav (piv txwv li kev xav txog kev cia siab) tau txais chav los ntawm cov kev xav zoo (piv txwv li kev xav siv hluav taws xob). Txawm li cas los xij normative thiab piav qhia theories tsis yog kev sib koom ua ke. Ob qho tib si xav tau hauv kev txiav txim siab hauv lub neej tiag tiag
Lub sij hawm ntawv puas muaj lub sij hawm?
Lub ntsiab txhais ntawm UNIX timestamp yog timezone ywj siab. Lub sij hawm yog tus naj npawb ntawm vib nas this (lossis milliseconds) tau dhau los txij li qhov taw qhia meej hauv lub sijhawm, ib tag hmo ntawm Lub Ib Hlis 1 1970 hauv UTC lub sijhawm. Txawm hais tias koj lub sijhawm nyob ntawm lub sijhawm, lub sijhawm teev sawv cev rau lub sijhawm uas zoo ib yam nyob txhua qhov chaw
Dab tsi yog qhov kev txwv kev ncaj ncees piav qhia txog kev ncaj ncees lossis kev txwv txawv teb chaws?
Kev lees paub ncaj ncees xav kom tus yuam sij txawv teb chaws yuav tsum muaj tus yuam sij tseem ceeb sib xws lossis nws yuav tsum yog null. Qhov kev txwv no tau teev tseg ntawm ob lub rooj (niam txiv thiab menyuam); nws tuav cov ntawv xov xwm ntawm kab hauv cov rooj no. Nws txhais tau hais tias kev siv los ntawm kab hauv ib lub rooj mus rau lwm lub rooj yuav tsum siv tau