Izindaba
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I-Niobium isetshenziswa njenge-catalyst ku-fuel cell
IBrazil ingumkhiqizi omkhulu we-niobium emhlabeni futhi ibamba cishe amaphesenti angama-98 ezinqolobane ezisebenzayo emhlabeni. Lesi sakhi samakhemikhali sisetshenziswa kuma-alloys ensimbi, ikakhulukazi insimbi enamandla amakhulu, futhi kuhlelo olucishe lungenamkhawulo lwezinhlelo zokusebenza zobuchwepheshe obuphezulu ukusuka komakhalekhukhwini kuya ezinjinini zezindiza. ...Funda kabanzi -
Ukusuka ku-cobalt kuye ku-tungsten: ukuthi izimoto zikagesi nama-smartphones zivusa kanjani uhlobo olusha lokujaha igolide
Yini ezintweni zakho? Iningi lethu alicabangi nakancane ngezinto ezenza ukuphila kwanamuhla kwenzeke. Nokho ubuchwepheshe obufana namafoni ahlakaniphile, izimoto zikagesi, ama-TV amakhulu kanye nokukhiqizwa kwamandla aluhlaza kuncike ezinhlobonhlobo zezakhi zamakhemikhali abantu abaningi abangakaze bezwe ngazo. Kuze kube sekupheleni...Funda kabanzi -
Ama-turbine blades aqinile anama-molybdenum silicides
Abacwaningi eNyuvesi yase-Kyoto bathole ukuthi i-molybdenum silicides ingathuthukisa ukusebenza kahle kwama-turbine blades ezinhlelweni zokuvutha kokushisa okuphezulu kakhulu. Izinjini zegesi yizinjini ezikhiqiza ugesi ezikhungweni zikagesi. Amazinga okushisa okusebenza amasistimu azo omlilo angadlula ...Funda kabanzi -
Indlela elula yokukhiqiza ngobuningi i-ultrathin, ikhwalithi ephezulu ye-molybdenum trioxide nanosheets
I-Molybdenum trioxide (MoO3) inamandla njengento ebalulekile enezinhlangothi ezimbili (2-D), kodwa ukukhiqizwa kwayo okuyinqwaba kusalele ngemuva kokwabanye ekilasini layo. Manje, abacwaningi kwa-A*STAR benze indlela elula yokukhiqiza ngobuningi ama-nanosheet e-MoO3 ekhwalithi ephezulu. Ilandela idiski...Funda kabanzi -
Ucwaningo luhlinzeka ngomgomo omusha wokuklama ama-catalyst ahlukanisa amanzi
Sekuyisikhathi eside ososayensi bazi ukuthi iplatinamu iyisisusa esingcono kakhulu sokuhlukanisa ama-molecule amanzi ukuze akhiqize igesi ye-hydrogen. Ucwaningo olusha olwenziwa abacwaningi baseBrown University lubonisa ukuthi kungani iplatinum isebenza kahle kangaka—futhi akusona isizathu esicatshangwayo. Ucwaningo, olushicilelwe ku-ACS Catalysi...Funda kabanzi -
Ukuguqula nokuhlanganisa izimpushana ze-chromium-tungsten ukuze udale izinsimbi ezinamandla
Ama-alloys amasha e-tungsten athuthukiswa ku-Schuh Group e-MIT angase athathe indawo ye-uranium ephelile kuma-projectiles okubhoboza izikhali. Umfundi owenza unyaka wesine wesayensi yezinto zokwakha kanye nobunjiniyela u-Zachary C. Cordero usebenza ngezinto ezinobuthi obuphansi, amandla aphezulu, nokuminyana okuphezulu ukuze kuthathelwe indawo ...Funda kabanzi -
Ukungcola kuhamba kanjani ku-tungsten
Ingxenye eyodwa yomkhumbi we-vacuum (izinto ezibheke kwi-plasma) yethuluzi lokuhlola le-fusion kanye ne-fusion reactor yesikhathi esizayo ihlangana ne-plasma. Lapho ama-ion e-plasma engena entweni, lezo zinhlayiya ziba i-athomu engathathi hlangothi futhi zihlale ngaphakathi kwento. Uma kubonakala kuma-athomu ahlanganisa...Funda kabanzi -
I-Chinese Tungsten Concentrate Market ingaphansi kwengcindezi ye-Lukewarm Demand
Imakethe ye-tungsten yaseChina ibilokhu ingaphansi kwengcindezi kusukela ngasekupheleni kuka-Okthoba ngenxa yesidingo esisivivi esivela kubasebenzisi bokugcina ngemva kokuba amakhasimende ehoxile emakethe. Abahlinzeki be-concentrate banciphisa amanani abo okunikezwayo ukuze bakhuthaze ukuthenga lapho bebhekene nokuzethemba kwemakethe okubuthakathaka. Izintengo ze-tungsten zesiShayina ziyi-e...Funda kabanzi -
Ukuguqula nokuhlanganisa izimpushana ze-chromium-tungsten ukuze udale izinsimbi ezinamandla
Ama-alloys amasha e-tungsten athuthukiswa ku-Schuh Group e-MIT angase athathe indawo ye-uranium ephelile kuma-projectiles okubhoboza izikhali. Umfundi owenza unyaka wesine wesayensi yezinto zokwakha kanye nobunjiniyela u-Zachary C. Cordero usebenza ngezinto ezinobuthi obuphansi, amandla aphezulu, nokuminyana okuphezulu ukuze kuthathelwe indawo ...Funda kabanzi -
I-Tungsten ne-titanium compounds iguqula i-alkane evamile ibe amanye ama-hydrocarbon
I-catalyst esebenza kahle kakhulu eguqula igesi ye-propane ibe ama-hydrocarbon esinda kakhulu ithuthukiswe yi-King Abdullah University of Science and Technology yase-Saudi Arabia. (KAUST) abacwaningi. Isheshisa kakhulu ukusabela kwamakhemikhali okwaziwa nge-alkane metathesis, engase isetshenziselwe ukuthuthukisa...Funda kabanzi -
I-Brittle material iqinisiwe: I-tungsten eqiniswe nge-tungsten-fibre
I-Tungsten ifaneleka ngokukhethekile njengempahla yezingxenye ezicindezeleke kakhulu zomkhumbi ezivale i-plasma ehlanganisiwe eshisayo, okuyinsimbi enephuzu eliphakeme kakhulu lokuncibilika. Nokho, ububi buwukuba brittleness kwayo, okuthi ngaphansi kokucindezeleka kuyenze ibe ntekenteke futhi ithambekele ekulimaleni. Inoveli, i-com eqinile ...Funda kabanzi -
I-Tungsten njengokuvikela imisebe ye-interstellar?
Iphuzu elibilayo elingu-5900 degrees Celsius kanye nobulukhuni obufana nedayimane kuhlanganiswe nekhabhoni: i-tungsten iyinsimbi esinda kakhulu, nokho inomsebenzi webhayoloji—ikakhulukazi kumagciwane athanda ukushisa. Ithimba eliholwa ngu-Tetyana Milojevic ovela ku-Faculty of Chemistry e-University of Vienna umbiko...Funda kabanzi