Menene Hollow Glass Microspheres

(Mene ne Hollow Glass Microspheres)

Menene Hollow Glass Microspheres

Gilashin microsphere na yanzu yana da babban abun ciki na silica fiye da waɗanda aka yi a gwaje-gwajen farko. Wannan sakamakon kai tsaye ne na yanayin zafi mafi girma da muke amfani da shi a yanzu (watau 1500°C vs 1200°C). Saboda girman girman yanki na yanzu ya fi girma, saurin ƙarshen su ya fi girma kuma lokutan zama sun fi guntu a cikin tanderun tacewa. Saboda haka, dole ne mu yi aiki a mafi girman zafin wuta don samun daidai matakin tace samfur. A cikin aikin droplet na farko na Hendricks da Dressier, an yi amfani da gilashin borosilicate na sodium wanda yayi kama da gilashin da E&C ya shirya (duba Table 1). Kamar yadda aka zata, dorewar wannan gilashin bai da kyau sosai. Rosenzweig et al. 4 ya binciki nau'ikan nau'ikan gilashin daban-daban tare da manufar inganta karko yayin da yake kiyaye gaurayawan farawa mai narkewa guda uku da ƙaramin narkewa, ƙaramin gilashin danko. Saboda buƙatun solubility, ƙari na ƙasa na alkaline da alumina, waɗanda sanannun abubuwan da aka sani don haɓaka karko, bai yiwu ba. Sabili da haka, hanyar da aka ɗauka shine don haɓaka gilashin borosilicate mai gauraye-alkali. Sanannen abu ne cewa gauraye gilashin alkali gabaɗaya suna da ingantacciyar ɗorewa fiye da gilashin alkali guda ɗaya na kwatankwacin nau'ikan molar.' 2 "Wannan gauraye alkali sakamako ana zaton da za a alaka da rage motsi na kowane ion a sakamakon da Bugu da kari na sauran. Mu na yanzu gilashin bayani abun da ke ciki ne sosai kama da asali Rosencwaig et al. hudu cakuda amma tare da kadan canje-canje a cikin B2 0 3 da K2 0 abun ciki. The Li 2 0 aka tsallake daga mafi kwanan nan formulations domin shi aka samu don samar da kadan 0.1. Bayanan kadara don microspheres gilashin LLNL ana ba da ƙima don abubuwan haɗin gilashi daban-daban guda biyu: ɗayan mafi girman abun ciki na alkali da ɗayan mafi girman abun ciki na silica.

Darajoji ga yawancin kayan aikin jiki na Hollow Glass Microspheres

A irin waɗannan lokuta, ana jera maɓuɓɓuka masu dacewa. An yi ma'auni da aka yi a cikin dakin gwaje-gwajenmu ko dai a kan filayen gilashi ko gilashin gilashin da ke da nau'i iri ɗaya. W. Haller ya shirya boules a ofishin ma'auni na kasa. Abubuwan injiniyoyi na gilashin microsphere suna da mahimmanci don kafa tsarin cika DT daidai. Lokacin zagayowar cikawa, gilashin yana mai zafi tsakanin 300 zuwa 400 ° C sannan kuma ana fuskantar matsin lamba na DT na waje. Saboda adadin cika ya yi daidai da matsa lamba a fadin bangon harsashi, mafi girman matsa lamba na waje, mafi girman adadin cika. Ba a ba da rahoton ma'auni na ƙididdige ƙarfin juzu'i na microspheres gilashin LLNL ba. Koyaya, ana iya samun ƙididdige ƙarfin juzu'i ta hanyar lura da matsakaicin matsi na cika wanda harsashi na wani yanayin da aka bayar zai iya riƙe. An ba da misalin irin waɗannan bayanai a cikin siffa 7, inda aka auna madaidaicin matsi mai cika, wanda aka auna a psi, an ƙirƙira shi da radius-to-wall-thickness RJt". Hanyar cikawa da wanke-wanke Lura cewa ɗigon yana faɗin yanki mai ƙarfi a cikin yanki mai inuwa na kusan 15,000 zuwa 30,000 psi.

Ƙarshe wannan tattaunawa ta Maƙallan Gilashin Ƙarfafa

Don kammala wannan tattaunawa game da ƙarfin microsphere, dole ne mu jaddada cewa ƙarfin ƙarfi mai yiwuwa shine ƙayyadaddun halayen gilashi yayin cika DT. A cikin takarda da ta gabata, 3' an yi tunanin cewa ƙarfin ƙarfi da ƙarfi na sararin gilashin sun yi kusan daidai kuma suna da girma sosai kuma yawancin gazawar sun faru ta hanyar buckling yayin aikace-aikacen matsin lamba na DT na waje. Sakamakon haka, mun ƙirƙiri hanyar cika DT don taimakawa guje wa ɓarna. Bayananmu na yanzu, duk da haka, sun nuna cewa ƙarfin ƙarfi mai tasiri yana da ƙasa da yadda ake tunani a baya, kuma ya fi dacewa da abin da aka saba aunawa. Sakamakon haka, yawancin gazawar suna faruwa a ƙarƙashin tashin hankali a kurakuran ƙasa a ƙarshen zagayowar cika DT. Banda wannan shine babban yanayin rabo mai girma. Don waɗannan girman girman, matsa lamba na iya zama ƙasa da matsin cika da ake so. Don haka, cikawar dole ne a aiwatar da shi cikin matakai don guje wa babban asara ta hanyar gazawar. An yi nazari da yawa game da iyawar gilashin silicate, kuma akwai adadi mai girman gaske na bayanai waɗanda za a iya amfani da su don hango ko hasashen yanayin haɓakar gilashin microspheres. Nazarin Shelby5 0 -' 6 da Altemose 4 7 — 1 8 akan H 2 da He permeability a cikin gilashin silicate suna da ƙimar musamman ga aikinmu. Souers et al. w sun sake nazarin waɗannan bayanan kuma sun yi amfani da su don fassara halayen haɓaka na 3M da E&C gilashin microspheres waɗanda aka yi amfani da su a farkon gwaje-gwajen ICF. Kwanan nan, Woerner et al. uku / sun auna D da He permeability na babban gilashin gilashin alkali kuma sun sami kyakkyawar yarjejeniya tare da dabi'un da aka annabta bisa ga ma'auni mai mahimmanci wanda Souers et al.

Farashin Gilashin Microspheres Hollow Glass

Girman barbashi na Gilashin Gilashi Mai Girma da tsafta zai shafi Farashin samfurin, kuma ƙarar siyan kuma na iya shafar farashin Gilashin Gilashin Maɗaukaki. Babban adadin adadi mai yawa zai zama ƙasa. Farashin Hollow Glass Microspheres yana kan gidan yanar gizon mu na hukuma.

Hollow Glass Microspheres maroki

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(Mene ne Hollow Glass Microspheres)