Hlobo luni lwesibopho samakhemikhali esitholakala ocingweni lwethusi: ukujula okujulile ku-Metallic Bonding

Njengomenzi wezakhi ezinengqondo eziphakeme ze-semiconductor kanye nezimboni ze-elekthronikhi, iqembu lami futhi mina ne-dongxin technology ubuchwepheshe obuvame ukubandakanyeka nonjiniyela eJalimane noma ochwepheshe abaholayo eJalimane. Ababuze nje ukucaciswa komkhiqizo; Bafuna ukuqonda isayensi ebalulekile ebonakalayo eyenza ingxenye ethembekile. Umbuzo ojwayelekile kodwa ophambili ovela umayelana nobunjalo bezinto esizisebenzisa nsuku zonke, njenge ithusi. Ukuqonda Uhlobo lwebhondi ukubamba ama-athomu ethusi ndawonye akuyona nje umsebenzi wokufunda - kuyisihluthulelo sokuvula ukuthi kungani ithusi umgogodla we-elekthronikhi wanamuhla. Le ndatshana izodiliza isibopho samakhemikhali phakathi kwa- ithusi, Ukuhamba ngaphesheya kwezincazelo ezilula ukuchaza ukuthi isakhiwo saso esiyingqayizivele esihlukile sichaza kanjani izakhiwo ezincike kulo onjiniyela ukuze bakhiqize ama-elekthronikhi aphezulu.

Yisiphi isibopho samakhemikhali, ngokuyisisekelo?

Emgodini wayo, a isibopho samakhemikhali Ukuheha okuhlala njalo phakathi kwama-athomu, ama-ion, noma ama-molecule anika amandla ukwakheka kwamakhompiyutha amakhemikhali. Cabanga ngakho njengebutho eliyisisekelo elibambe ndawonye. -Nke i-athomu liqukethe inqwaba, ikhokhiswa kahle i-nucleus ezungezwe ama-elektroni akhokhiswa kabi. Kungukuziphatha kwalawa ma-elektroni angaphandle, owaziwa ngokuthi I-Valence Electrons, okuchaza uhlobo lwe-bonding. Inhloso yanoma yikuphi i-athomu ukubamba iqhaza ebhondi ukuze kufinyelelwe isimo esizinzile, ngokuvamile ngokugcwalisa abangaphandle kwaso i-elektroni igobolondo.

Lokhu kuzinza kutholakala ngokwabelana, ukunikela, noma ukwamukela i i-elektroni (noma ama-elektroni amaningi) phakathi kwama-athomu. Indlela ethile esetshenzisiwe ichaza i Uhlobo lwebhondi lawo mafomu. Umphumela Amandla okuheha akuyona ne-glue ebonakalayo kepha amandla kagesi - okuhehayo phakathi kwezindleko ezinhle nezingalungile. Understanding this concept is the first step to appreciating the unique way a insimbi yanama ini thanda ithusi ihlela ama-athomu alo angenakubalwa ukudala impahla eqinile, evuthayo. Lonke ilungiselelo lama-elektroni yilokho okunika into yayo ehlukile.

Ingabe kunezinhlobo ezahlukene zamabhondi zamakhemikhali?

Yebo, ngenkathi kunama-nuances amaningana, amakhemikhali ajwayele ukuhlukanisa izibopho zamakhemikhali ezigabeni ezintathu eziyisisekelo. Each type represents a different strategy that atoms use to stabilize their i-elektroni ukucushwa. Ukuqonda lezi Izinhlobo zamabhondi zamakhemikhali kubalulekile ukuqonda ukuthi kungani ithusi kuncike kuhlobo oluthile oluthile.

1. I-Ionic Bond: Lokhu Uhlobo lwebhondi imvamisa kwenzeka phakathi kwe insimbi yanama ini kanye ne-non-insimbi i-athomu. Ku Ionic Bond, ama-elektroni elilodwa noma amaningi adluliselwa ngokuphelele kusuka ku insimbi yanama ini i-athomu kokungeyona insimbi i-athomu. Lokhu kudluliswa kwakha okubili ophikiswe ama-ion abhalwe phansi: I-cation ekhokhiswa kahle (The insimbi yanama ini lokho kulahlekelwe a i-elektroni) ne-anion ekhokhiswe kabi (i-non-insimbi eyayithola i i-elektroni). Ukuheha okuqinile kwe-elektrostiki phakathi kwalokhu I-Ions ekhishwe kwakha isibopho. Isibonelo esidala usawoti wetafula (Nacl).

2. Isibopho esingenhla: Lesi sibopho sakha lapho ama-athomu amabili - imvamisa engeyona imitha - abelana ngamabili noma ngaphezulu ngama-elektroni. Esikhundleni sokudluliswa, the Ama-elektroni abiwe ukujikeleza i-nuclei yama-athomu womabili, ubambe ndawonye. A ama-athomu ahlanganyela Ama-elekthronikhi ukuqedela igobolondo langaphandle langaphandle. Lokhu kungaba ngcono isibopho esingenhla noma a I-Polar Combared Bond, lapho ama-elektroni ahlanganyela ngokungalingani ngenxa yokwehlukana ngaphakathi uhlobo lwenkambisi. Amanzi (H₂O) yisibonelo esiphambili se-molecule ebanjwe ndawonye -simangalo Amabhondi.

3. Isibopho sensimbi: Lokhu Uhlobo lwebhondi kutholakala kwizinsimbi nama-alloys, kufaka phakathi ithusi. Kuyindlela ehlukile yokubopha echaza izici zezimpawu zezinsimbi. -Ngafani na- inganiki noma -simangalo Amabhondi, The Ukubopha kufaka phakathi Ukwabelana ngokuhlangene kwama-elektroni kuwo wonke amathomu amakhulu ama-athomu, esizowahlola ngemininingwane eminingi kakhulu.

Kungani ithusi lingabanjwa ndawonye ngama-ionic noma ama-combared bond?

Njengoba kunikezwe okuyinhloko izinhlobo zokubopha, kunengqondo ukubuza ukuthi kungani ithusi ayifomu inganiki noma -simangalo izibopho ngokwazo. Impendulo ilele kuhlobo lwe ithusi i-athomu kanye ne-elektroni yayo. A Ionic Bond kukhishwe ngokushesha ngoba kudinga ukudluliswa kwe i-elektroni phakathi kwezinhlobo ezimbili ezahlukene zama-athomu - eyodwa enikeza ama-elektroni (a insimbi yanama ini) nokwamukela kalula (okungeyona insimbi). Esiqeshini esimsulwa ucingo lwethusi, wonke ama-athomu ayafana ithusi ama-athomu. Ayikho insimbi engeyona insimbi i-athomu yethula ukwamukela i i-elektroni, ngakho-ke cha Ionic Bond ungakha.

A isibopho esingenhla futhi akuyona inketho esebenzayo ye ithusi. A isibopho esingenhla Kudinga ama-athomu ukuze abelane ngogesi ukwakha ama-diskte, izibopho eziqondayo. A ithusi i-athomu ine-munye kuphela I-Valence Electron kepha uzungezwe ezinye eziyi-12 ithusi ama-athomu esakhiweni sawo sekristalu. Kumane nje akunawo ama-elektroni angaphandle aphezulu wokwakha aqinile isibopho esingenhla nomakhelwane bayo ngamunye. Ukuzama ukwenza kanjalo kungaholela ekwakhiweni okungazinzile futhi okubuthakathaka. Uhlobo lwe insimbi yanama ini i-athomu ukulahlekelwa ubuqili bawo i-elektroni Kalula, hhayi ukuwabelana ngesakhiwo esiqinile, esibhangqiwe. Lesi sici esingokwemvelo senza -simangalo Imodeli engakulungele ukuchaza ukwakheka okuqinile, ezinzile ithusi.

Ngabe isibopho sensimbi e-athomu sethusi empeleni sisebenza kanjani?

Le khasi isibopho samakhemikhali lokho kunika ithusi Izakhiwo zayo eziphawuleka yilezi isibopho sensimbi. Le modeli ichazwa kangcono njengelungiselelo le I-Ion ebizwa nge-Ion IPHEPHA LOKUQHAWULA KAKHULU, OKUFUNDILE (I-Crystal Lattice) futhi izungezwe "ulwandle" lwe-elektroni ephathekayo. Engxenyeni eqinile ye ithusi, ngamunye ithusi i-athomu Inikela ngokungaphandle kwayo i-elektroni kulolu lwandle oluhlanganisiwe. Lawa ma-elektroni awasahlanganiswa nanoma yikuphi okukodwa i-athomu; Esikhundleni salokho, baba kuncishiswe.

Leli "Ulwandle Lwezingane" yitshe legumbi le isibopho sensimbi. Le khasi Ama-elektroni adiliziwe baphelele Mahhala ukuhambisa kulo lonke ucezu lwe insimbi yanama ini. Le khasi isibopho sensimbi ngokwayo yi-electrostatic Amandla okuheha phakathi kwe-lattice ye ama-ion amahle (The ithusi ama-athomu ngaphandle kwama-elektroni awo we-valence) kanye neselula, khokhiswa kabi ulwandle lwe Ama-elektroni adiliziwe. Lesi akusona isibopho phakathi kwama-athomu amabili kepha ukukhangana komphakathi okubambelele konke kwensimbi ndawonye ngamandla amakhulu. Leli lungiselelo elihlukile libhekele cishe sonke isimilo Izakhiwo zezinsimbi.

Ngabe i-Valence Electrons edlalayo nge-Popper's Metallic Bond?

Le khasi I-Valence Electron yinkanyezi yombukiso uma kukhulunywa isibopho sensimbi. Ama-elektroni we-valence angama-elektroni egobolondo elingaphandle le-an i-athomu, futhi yibo ababamba iqhaza ekubopheni kwamakhemikhali. Okwe ithusi i-athomu, Ukucushwa kwe-elekthronth ngu [ar] 3d¹⁰ 4s¹. Ongashadile i-elektroni Ku-4s -thodwa yiyo I-Valence Electron. Leli i-elektroni kude kakhulu ne i-nucleus futhi ayibanjwa ngokuqinile. Ngenxa yalokho, inganikelwa kalula kolwandle oluhlanganayo. "

Lapho inani elikhulu le ama-athomu ethusi hlanganani ukwakha okuqinile, ngamunye i-athomu Kukhipha ama-4s awo I-Valence Electron. Okushiywe ngemuva Kukhokhiswa kahle ithusi ihhashi (Cu⁺) nge-3D ezinzile, egcwele -thodwa. Lezi ama-ion amahle bazihlele ku-crystalline lattice e-crystalline. Ama-elektroni anikelwe ngokunikela manje abizwa ngokuthi Ama-elektroni aceliwe futhi bakhululekile ukuzulazula kulo lonke leli thalethi. Ukuheha okuqinile kwe-electrostatic phakathi kwenani elikhulu le I-nuclei enhle ethangeni kanye nenani elikhulu le-elektroni ephathekayo lakha amandla anamandla, angafundile isibopho sensimbi.

Ngabe le ndoda eyingqayizivele ichaza kanjani amandla amakhulu kagesi aphezulu e-Copper?

Okuhlukile ukubangelanisa iwa- ithusi kungumphumela oqondile wayo isibopho sensimbi. Ngezinto zokwakha inganiki noma -simangalo ama-bond, ama-elektroni agcinwe ngokuqinile ihhashi noma kuvalwe kwabiwe -thodwa between two atoms. Abakhululekile ukuhambisa. Phakathi kwa- ithusiKodwa-ke, nokho, Ulwandle lwama-elektroni adiliziwe ihlala ihamba ngokungahleliwe. Lapho inkambu kagesi isetshenziswa ngaphesheya a ucingo lwethusi-Isibonelo, ngokuyixhumanisa nebhethri - amandla aqondayo atholakala kulokhu Mahhala ukuhambisa Ama-elektroni.

Le khasi Ama-elektroni wamahhala Masinyane qala ukudonsa endaweni ehlanganisiwe, kusuka esigungwini esingesihle kuya esigungwini esihle. Lokhu kugeleza okuqondiswe kwecala yilokho esikubiza ngogesi kwamanje. Ngoba baningi kakhulu Ama-elektroni adiliziwe Kutholakala ukuthwala icala futhi bangahamba ngokumelana okuncane kakhulu, ithusi kukhombisa okuhle kakhulu ukuqina kukagesi. Isimiso esifanayo siyasebenza kokushisayo ukubangelanisa; Ama-elektroni eselula angakwazi ukudlulisa ngokushesha ama-kinetic Energy (ukushisa) kusuka engxenyeni ethile ye insimbi yanama ini kwenye. Yingakho ithusi isetshenziswa kabanzi kuzicelo zikagesi, ezivela e-wiring yasekhaya ekuxhumaneni okuyinkimbinkimbi ngaphakathi kwe i-semiconductor chip. Kungenye yezizathu eziphambili kugxilwe ekutadisheni izinsiza ezifana ne I-Chemistry LibreTexts.

Kungani ithusi lihlala lilingane futhi lingena? Isifundo esivela esihlokweni saso samakhemikhali.

Phambili ukubangelanisa, ezinye izakhiwo ezimbili zesiginesha ze ithusi yiyo imali ephakathi (amandla okufakwa ngesando abe amashidi amancanyana) futhi indawo yokuphumula (amandla okudonswa izintambo). Kokubili ukulingana kanye nekhompiyutha bachazwa futhi ngesimo se isibopho sensimbi. Ku-crystalline eqinile inganiki bonds, like salt, applying a strong force can shift the layers of ions. Lokhu kuguqulwa kungaletha ama-uons ngemali efanayo eduze komunye nomunye, okubangela ukuqina okuqinile okuphula ikristalu. Okuqukethwe yi-brittle. Ngokufanayo, -simangalo Ama-solids wenethiwekhi aqinile kakhulu futhi azophuka kunokuba agobe.

Phakathi ku insimbi yanama ini thanda ithusi, isimo sehluke ngokuphelele. Lapho kufakwa amandla, isendlalelo esisodwa se ithusi Ama-ion angaslayida ngaphezulu kwesinye ngaphandle kokuphula impahla. Le khasi Ulwandle lwama-elektroni adiliziwe uketshezi futhi luyashintsha ngokushesha kulungiselelo elisha le ama-ion amahle, ukulondolozela ukuheha okuhlangene kahle kwe-electrostatic. Le khasi isibopho sensimbi akuqondiwe; Akukhathalekile ukuthi ama-Ion ahlobene kuphi, inqobo nje uma ecwiliswe olwandle lwe-elektroni. Lesi sici esiyingqayizivele sivumela izinsimbi ukuthi zichithwe ngaphandle kokuphupha, impahla ebalulekile yezinqubo zokukhiqiza ezisebenzisa izinto ezinjengezinto ezifana I-Aluminium Wire Emsulwa Ngezicelo zokubopha izibopho.

Ngabe itafula lesikhathi libikezela kanjani ukuzijabulisa kwe-zethusi?

Le khasi itafula lesikhathi iyithuluzi elibalulekile lokubikezela isimilo samakhemikhali. Ithusi (Cu) Itholakala eqenjini 11 futhi ihlukaniswe njengenguquko insimbi yanama ini. Izinto ezihlukaniswe njengezinsimbi ngokuvamile zinokuthambekela kokulahlekelwa ama-elektroni kunokuba uzithole, okuyinto yokuqala kwakha izibopho zensimbi. Izinsimbi zitholakala ohlangothini lwesobunxele nasenkabeni ye itafula lesikhathi. Lezi zinto zivame ukuba nabambalwa I-Valence Electronama-s kanye namandla aphansi ama-Ionization, okusho amandla amancane kuyadingeka ukususa kwawo Ama-elektroni angaphandle.

Lokhu kuphakama kusikisela kakhulu lokho ithusi ngeke akha -simangalo Amabhondi (azodinga ukuthola noma ahlanganyele ama-elektroni amaningi ukufeza i-Octet ephelele) noma inganiki izibopho ngokwazo. Esikhundleni salokho, ukuthambekela kwalo kokunikela kalula ama-4s awo I-Valence Electron kwenza kube ngumuntu ophelele ukubopha insimbi. Izakhiwo zazo zonke izinto eqenjini lazo, kufaka phakathi isiliva (AG) neGolide (AU), zilawulwa yi isibopho sensimbi, okuholela ezimfanelweni zazo ezabiwe zaphezulu ukubangelanisa, imali ephakathi, ne-luster.

Yini imiphumela esebenzayo ye-semiconductor nokukhiqiza ibhethri?

Njengonjiniyela nomenzi, yilapho the shoory ihlangabezana khona nesicelo. Ukuqonda isibopho sensimbi phakathi kwa- ithusi kubalulekile kumakhasimende ethu ku i-semiconductor, Ibhethri le-EV, kanye nezimboni zeCapacitor. Ukwethenjwa komkhiqizo wokugcina kuvame ukwehla kukhwalithi yokuxhumeka kwayo okukhohlisayo, okulawulwa yizakhiwo ze isibopho sensimbi.

Isibonelo, ku i-semiconductor Ukupakisha, i-ultrasonic wire bonding kuyinqubo ebalulekile. Senza amathuluzi afana ne Ithuluzi elenziwe ngezifiso le-Welge Bonding ye-Aluminium Wire Welding auto okuncike ku imali ephakathi ye-aluminium noma ucingo lwethusi ukwakha i-welve-state weld. Le khasi isibopho sensimbi Ivumela ucingo ukuthi lusebenze futhi lwenze ukuxhumana okuqinile ngaphandle kokuncibilika. Ngaphezu kwalokho, okushisayo okuphezulu futhi ukuqina kukagesi iwa- ithusi Kubalulekile ekwakheni ukuxhumana okuthembekile okungaphatha ukushisa namandla kumadivayisi athuthukile afana nama-IGBTS. Abanamandla isibopho sensimbi futhi kuphumela endaweni ephezulu iphuzu elincibilikayo, Ukuqinisekisa ukuthi lokhu kuxhumana kuhlala zizinza noma ngaphansi kwamazinga okushisa aphezulu. EDongxin, sithola lolu lwazi ukuklama imishini efana neyethu I-WS9820 I-automal automal aluminium wire wedge bonder, elungiselelwe ukusebenza nezakhiwo eziyisisekelo zezinsimbi.

Ngaphesheya kwe-Copper: Ngabe izibopho zensimbi ziyehluka kanjani kwezinye izinsimbi?

Ngenkathi isibopho sensimbi imodeli ikhona emhlabeni wonke Izinto zensimbi, amandla nomlingiswa webhondi kungahluka kakhulu kusuka koyedwa insimbi yanama ini kwenye. Lokhu kuhluka kuchaza ububanzi bezakhiwo ezibonayo ngezinsimbi ezihlukile. Amandla we isibopho sensimbi ngokuvamile kuya ngezinto ezimbili eziphambili: icala le insimbi yanama ini ihhashi kanye Inani lama-elektroni kwaba nomthelela "olwandle."

Isibonelo, i-aluminium (al) iseqenjini 13 futhi inikela ngama-elektroni amathathu we-vavance olwandle, akha i-al³⁺ ihhashi. Lokhu kuphumela ngamandla isibopho sensimbi uma kuqhathaniswa ithusi, okuphikisana kuphela i-elektroni. Lesi sibopho esinamandla sinika amandla amahle wesakhiwo esihle kakhulu sesisindo sawo. UTungsten (W), inguquko insimbi yanama ini, kungafaka amandla ama-elektroni ayisithupha, adala okuqinile kakhulu isibopho sensimbi. Yingakho iTungsten inenye yezinto eziphakeme kakhulu Amaphuzu ancibilikayo yazo zonke izinsimbi futhi isetshenziswa ezinhlelweni zokushisa okuphezulu. EDongxin, ubuchwepheshe bethu bufinyelela ekumangweninjini nokuphatha lezi zinto ezahlukahlukene, noma ngabe kwakha amathuluzi e-tungsten carbide noma izingxenye ezinembile ze Mandrel of winding umshini wamabhethri ayindilinga. Ukuqonda ama-nuances a isibopho sensimbi Kuwo wonke kusivumela ukuba sinikeze izisombululo ezingcono zamakhasimende ethu.

Ukuthathwa Key

Ukuphetha ukungena kwethu okujulile ebhilisweni ithusi, Nawa amaphuzu abaluleke kakhulu okufanele uwakhumbule:

• Uhlobo lwe-Primary Bond: Ama-athomu aqinile ithusi zibanjwa ndawonye nge isibopho sensimbi, hhayi a inganiki noma isibopho esingenhla.
• Imodeli "ye-Electron" ye-Electrons: Le khasi isibopho sensimbi liqukethe i-lattice eqinile ye Kukhokhiswa kahle ithusi ion ezungezwe "ulwandle" lweselula lwe- Ama-elektroni adiliziwe.
• Indima ye-Valence Electrons: Sisinye ithusi i-athomu Inikela nge-optermost yayo eyodwa I-Valence Electron kulolu lwandle oluhlanganisiwe.
• Umthombo Wezakhiwo Ezisemqoka: Lokhu okuhlukile okokubopha Isakhiwo sichaza ngqo izakhiwo ezibaluleke kakhulu yiCopper:
  • Ukuqhutshwa okuphezulu: Le khasi Mahhala ukuhambisa Ama-elektroni adiliziwe Phatha ugesi wamanje nokushisa ngokwenza kahle.
  • I-Malleability ne-Cuctility: Izingqimba ze insimbi yanama ini Ama-ion angakwazi ukuslayida esedlule ngaphandle kokuphula izibopho, ukuvumela ithusi ukuze babunjwe.
• Ukuhambisana Kwezimboni: Ukuqonda okujulile kwe isibopho sensimbi ibalulekile ekusungulweni okusha nokulawulwa kwekhwalithi ezimbonini ezinje i-semiconductor Ukukhiqiza, lapho lezi zindawo zixhashazwa nsuku zonke ukwakha ubuchwepheshe besikhathi esizayo.