典型文献
Calcium-Doped Boron Nitride Aerogel Enables Infrared Stealth at High Temperature Up to 1300 ℃
文献摘要：
Boron nitride (BN) aerogels,composed of nanoscale BN building units together with plenty of air in between these nanoscale building units,are ultralight ceramic materials with excellent thermal/electrical insulation,great chemical stability and high-temperature oxidation resistance,which offer considerable advantages for various applications under extreme conditions.However,previous BN aerogels cannot resist high temperature above 900 ℃ in air atmosphere,and high-temperature oxidation resistance enhancement for BN aerogels is still a great challenge.Herein,a calcium-doped BN (Ca-BN) aerogel with enhanced high-temperature stability (up to ～ 1300 ℃ in air) was syn-thesized by introducing Ca atoms into crystal structure of BN building blocks via high-temperature reaction between calcium phosphate and melamine diborate architecture.Such Ca-BN aerogels could resist the burning of butane flame (～ 1300 ℃) and keep their megashape and microstructure very well.Furthermore,Ca-BN aerogel serves as thermal insulation layer,together with A1 foil serving as both low-infrared-emission layer and high-infrared-reflection layer,forming a combination structure that can effectively hide high-temperature target (heated by butane flame).Such successful chemical doping of metal element into crystal structure of BN may be helpful in the future design and fabrication of advanced BN aerogel materials,and further extending their possible applications to extremely high-temperature environments.
文献关键词：
中图分类号：
作者姓名：
Mengya Zhu;Guangyong Li;Wenbin Gong;Lifeng Yan;Xuetong Zhang
作者机构：
School of Nano-Tech and Nano-Bionics,University of Science and Technology of China,Hefei 230026,People's Republic of China;Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou 215123,People's Republic of China;School of Physics and Energy,Xuzhou University of Technology,Xuzhou 221018,People's Republic of China;School of Chemistry and Materials Science,University of Science and Technology of China,Hefei 230026,People's Republic of China;Division of Surgery & Interventional Science,University College London,London NW32PF,UK
文献出处：
引用格式：
[1]Mengya Zhu;Guangyong Li;Wenbin Gong;Lifeng Yan;Xuetong Zhang-.Calcium-Doped Boron Nitride Aerogel Enables Infrared Stealth at High Temperature Up to 1300 ℃)[J].纳微快报（英文）,2022(01):295-306
A类：
diborate,megashape
B类：
Calcium,Doped,Boron,Nitride,Aerogel,Enables,Infrared,Stealth,High,Temperature,Up,nitride,BN,aerogels,composed,nanoscale,building,units,together,plenty,air,between,these,ultralight,ceramic,materials,excellent,thermal,electrical,insulation,great,chemical,stability,high,temperature,oxidation,resistance,which,offer,considerable,advantages,various,applications,under,conditions,However,previous,cannot,above,atmosphere,enhancement,still,challenge,Herein,calcium,doped,enhanced,up,was,syn,thesized,by,introducing,atoms,into,crystal,blocks,via,reaction,phosphate,melamine,architecture,Such,could,burning,butane,flame,keep,their,microstructure,very,well,Furthermore,serves,layer,A1,foil,serving,both,low,infrared,emission,reflection,forming,combination,that,effectively,hide,target,heated,successful,doping,metal,element,may,helpful,future,design,fabrication,advanced,further,extending,possible,extremely,environments
AB值：
0.581383
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
