Jerin samfuran ƙarfe masu hana harsashi na silicon da aka lalata da kuma jerin samfuran ƙarfe masu hana harsashi na silicon carbide

Ceramics na Sintered SiC: Fa'idodin Kayayyakin Ballistic na SiC na Ceramics

Kayayyakin kariya daga harsashi na silicon carbidesuna ƙara shahara a fannin kariyar kai da ta soja saboda kyakkyawan aiki da kuma ƙarfinsu. Waɗannan tukwane suna da sinadarin SiC ≥99% da kuma tauri (HV0.5) ≥2600, wanda hakan ya sa suka zama kayan da aka fi so don amfani da su kamar riguna masu hana harsashi da kayan kariya ga tankuna da motocin yaƙi.

Babban samfurin wannan jerin shine takardar ƙarfe mai hana harsashi ta silicon carbide. Ƙananan yawa da nauyinsa mai sauƙi sun sa ya dace sosai da kayan aikin soja, musamman a matsayin rufin ciki na riguna masu hana harsashi. Bugu da ƙari, yana ba da fa'idodi masu mahimmanci dangane da dorewa, ƙarfi da kwanciyar hankali na zafi.

Tukwanen silicon carbide (SiC) suna da tsarin lu'ulu'u guda biyu, mai siffar cubic β-SiC da kuma hexagonal α-SiC. Waɗannan tukwanen suna da ƙarfi covalent bond, ingantattun halayen injiniya, juriya ga iskar shaka, juriya ga lalacewa da kuma ƙarancin coefficient na gogayya fiye da sauran tukwane kamar alumina da boron carbide. Babban ƙarfinsu na zafi, ƙaramin coefficient na faɗaɗa zafi, da kuma kyakkyawan juriya ga girgizar zafi da tsatsa na sinadarai sun ƙara sauƙaƙe aikace-aikacensu masu faɗi.

Ka'idar hana harsashi ta yumburan silicon carbide ta ta'allaka ne a kan ikonsa na wargazawa da kuma shan kuzarin harsashi. Yayin da kayan injiniya na gargajiya ke shan makamashi ta hanyar nakasa ta filastik, kayan yumbu, gami da silicon carbide, suna yin hakan ta hanyar ƙananan fasa.

Tsarin shaƙar makamashi na yumbu mai hana harsashi na silicon carbide za a iya raba shi zuwa matakai uku. A lokacin farkon tasirin, harsashin ya afka saman yumbu, yana rage harsashin kuma yana murƙushe saman yumbu, yana ƙirƙirar ƙananan wurare masu tauri da suka karye. A lokacin matakin zaizayar ƙasa, harsashin da ba shi da ƙarfi yana ci gaba da lalata yankin tarkacen, yana samar da layin ci gaba na tarkacen yumbu. A ƙarshe, a lokacin matakan nakasa, fashewa da karyewa, yumbun yana fuskantar matsin lamba na tauri, wanda ke haifar da fashewa daga ƙarshe. Sauran kuzarin yana wargajewa ta hanyar nakasa kayan bayan farantin.

Waɗannan kyawawan halaye da tsarin shaƙar makamashi na matakai uku suna ba da damar samfuran ballistic na silicon carbide na yumbu don kawar da tasirin harsasai yadda ya kamata kuma su sa su zama marasa lahani. Matsayin hana harsashi ya kai matakin Amurka na 4, wanda ke ba da kariya mafi girma kuma shine zaɓi na farko na ƙwararrun sojoji a duniya.

A taƙaice, yumbu mai sintered silicon carbide da jerin samfuran yumbu mai hana harsashi na silicon carbide suna da fa'idodi na musamman dangane da halayen injiniya, kwanciyar hankali na zafi, da ingancin hana harsashi. Tare da kyawawan halayensu, ana amfani da waɗannan yumbu sosai azaman kayan rufi don riguna masu hana harsashi da na'urorin kariya ga tankuna da motocin sulke. Ƙananan yawa da nauyinsu mai sauƙi sun sa su dace da kariyar ballistic na mutum. Yayin da fasaha ke ci gaba da ci gaba, za mu iya tsammanin ƙarin ci gaba da amfani da waɗannan yumbu masu ban mamaki a cikin kariyar mutum da ta soja.