Ikhabhoni ifayibha eyomeleziweyo yeresin matrix imidibaniso ibonisa amandla athile angcono kunye nokuqina kunesinyithi, kodwa ithanda ukusilela kokudinwa. Ixabiso lentengiso ye-carbon fiber-reinforced resin matrix composite linokufikelela kwi-31 yeebhiliyoni zeedola ngo-2024, kodwa iindleko zenkqubo yokubeka iliso kulwakhiwo lwezempilo ukufumanisa umonakalo wokudinwa zinokungaphezulu kwe-5.5 yeebhiliyoni zeedola.
Ukujongana nale ngxaki, abaphandi bahlola i-nano-additives kunye ne-self-healing polymers ukuyeka ukuqhekeka ekusasazeni kwizinto eziphathekayo. NgoDisemba ka-2021, abaphandi kwiYunivesithi yaseWashington iRensselaer Polytechnic Institute kunye neYunivesithi yaseBeijing yeChemical Technology bacebise ngento edibeneyo eneglasi-njengepolymer matrix enokubuyisela umva umonakalo wokudinwa. I-matrix ye-composite yenziwe nge-epoxy resins eqhelekileyo kunye nee-epoxy ezikhethekileyo ezibizwa ngokuba yi-vitrimers. Xa kuthelekiswa ne-epoxy resin eqhelekileyo, umahluko ophambili phakathi kwe-agent ye-vitrifying kukuba xa ushushu ngaphezu kweqondo lokushisa elibalulekileyo, i-reversible cross-linking reaction yenzeke, kwaye iyakwazi ukuzilungisa.
Kwanasemva kwe-100,000 lemijikelo yomonakalo, ukudinwa kwi-composites kunokubuyiselwa ngokufudumeza kwamaxesha ukuya kwixesha elingaphezu kwama-80°C. Ukongeza, ukuxhaphaza iipropathi zemathiriyeli yekhabhoni ukuze zifudumale xa zisesichengeni seRF electromagnetic fields kungathatha indawo yokusetyenziswa kwezifudumezi eziqhelekileyo ekulungiseni okukhethiweyo. Le ndlela ijongene nemeko "engenakulungiseka" yomonakalo wokudinwa kwaye inokubuyisela umva okanye ilibazise umonakalo owenziwe ukudinwa phantse ngokungenasiphelo, ukwandisa ubomi bezinto zokwakha kunye nokunciphisa ukugcinwa kunye neendleko zokusebenza.
IKHABBONI / SILICON IFIBER YE-CARBIDE INOBUMANDLA 3500 ° C BUBUCHUNGU OKUPHEZULU
Uphononongo lwengqiqo yeNASA ye "Interstellar Probe", ekhokelwa yiYunivesithi yaseJohns Hopkins Applied Physics Laboratory, iya kuba ngumsebenzi wokuqala wokuphonononga indawo engaphaya kwesixokelelwano sethu selanga, efuna ukuhamba ngesantya esikhawulezayo kunaso nasiphi na esinye isiphekepheke. Kude. Ukuze ikwazi ukufikelela imigama emide ngesantya esiphezulu kakhulu, ii-interstellar probes kusenokufuneka zenze i-"Obers maneuver," eya kuthi ijiwuze i-probe kufuphi nelanga ize isebenzise umxhuzulane welanga ukutyhalela kwindawo enzulu.
Ukufezekisa le njongo, i-lightweight, i-ultra-high imathiriyeli yokushisa kufuneka iphuhliswe kwikhuselo lelanga le-detector. NgoJulayi ka-2021, umphuhlisi wezinto zobushushu obuphezulu waseMelika, iAdvanced Ceramic Fiber Co., Ltd. kunye neYunivesithi yaseJohns Hopkins Applied Physics Laboratory basebenzisane ukuphuhlisa ifayibha yeceramic ekhaphukhaphu, enobushushu obuphezulu kakhulu enokumelana nobushushu obuphezulu obuyi-3500°C. Abaphandi baguqula umgca wangaphandle we-carbon fiber filament nganye kwi-carbide yensimbi efana ne-silicon carbide (SiC / C) ngokusebenzisa inkqubo yokuguqula ngokuthe ngqo.
Abaphandi bavavanya iisampulu besebenzisa uvavanyo lomlilo kunye nokufudumeza kwe-vacuum, kwaye ezi zixhobo zibonise amandla obunzima, izixhobo zoxinzelelo lomphunga ophantsi, ukwandisa umda okhoyo ongaphezulu we-2000 ° C kwizinto ze-carbon fiber, kunye nokugcina ubushushu obuthile kwi-3500 ° C. Amandla omatshini, kulindeleke ukuba asetyenziswe kwikhaka lelanga leprobe kwixesha elizayo.
Ixesha lokuposa: Jul-18-2022