火炸药学报
火炸藥學報
화작약학보
CHINESE JOURNAL OF EXPLOSIVES & PROPELLANTS
2015年
4期
90-94
,共5页
物理化学%含硼富燃料推进剂%吉布斯最小自由能%扫描电子显微镜%燃烧产物%燃烧温度%一次燃烧
物理化學%含硼富燃料推進劑%吉佈斯最小自由能%掃描電子顯微鏡%燃燒產物%燃燒溫度%一次燃燒
물이화학%함붕부연료추진제%길포사최소자유능%소묘전자현미경%연소산물%연소온도%일차연소
physical chemistry%boron based fuel-rich propellant%Gibbs principle of minimum free energy%Scanning Electron Microscopy%combustion products%combustion temperature%primary combustion
采用燃烧温度测试系统测量了0．2、0．4、1．4和3．1 MPa 下含硼富燃烧料推进剂的一次燃烧温度，利用最小自由能法研究了压强对含硼富燃料推进剂一次燃烧产物组分的影响，用扫描电镜对不同压强下一次燃烧产物凝聚相的形貌进行了表征。结果表明，含硼富燃料推进剂一次燃烧产物中含硼产物主要以 B2 O3、B4 C、BN、B、B2 O2（g）和 HBO（g）的形式存在，压强较低时，燃烧产物中单质硼和B4 C 含量较高，硼的反应率较低；随着压强的升高，燃烧产物中单质硼和B4 C含量大幅降低，B2 O3含量增加，说明压强升高有利于提高硼的反应率和硼燃烧的热量释放。B2 O2（g）、HBO（g）和 MgCl2（g）的含量随压强的升高而增加，HCl（g）含量随压强升高而降低，H2（g）含量则保持稳定。燃烧压强越高，凝聚相产物分散性越好，平均粒度越小。
採用燃燒溫度測試繫統測量瞭0．2、0．4、1．4和3．1 MPa 下含硼富燃燒料推進劑的一次燃燒溫度，利用最小自由能法研究瞭壓彊對含硼富燃料推進劑一次燃燒產物組分的影響，用掃描電鏡對不同壓彊下一次燃燒產物凝聚相的形貌進行瞭錶徵。結果錶明，含硼富燃料推進劑一次燃燒產物中含硼產物主要以 B2 O3、B4 C、BN、B、B2 O2（g）和 HBO（g）的形式存在，壓彊較低時，燃燒產物中單質硼和B4 C 含量較高，硼的反應率較低；隨著壓彊的升高，燃燒產物中單質硼和B4 C含量大幅降低，B2 O3含量增加，說明壓彊升高有利于提高硼的反應率和硼燃燒的熱量釋放。B2 O2（g）、HBO（g）和 MgCl2（g）的含量隨壓彊的升高而增加，HCl（g）含量隨壓彊升高而降低，H2（g）含量則保持穩定。燃燒壓彊越高，凝聚相產物分散性越好，平均粒度越小。
채용연소온도측시계통측량료0．2、0．4、1．4화3．1 MPa 하함붕부연소료추진제적일차연소온도，이용최소자유능법연구료압강대함붕부연료추진제일차연소산물조분적영향，용소묘전경대불동압강하일차연소산물응취상적형모진행료표정。결과표명，함붕부연료추진제일차연소산물중함붕산물주요이 B2 O3、B4 C、BN、B、B2 O2（g）화 HBO（g）적형식존재，압강교저시，연소산물중단질붕화B4 C 함량교고，붕적반응솔교저；수착압강적승고，연소산물중단질붕화B4 C함량대폭강저，B2 O3함량증가，설명압강승고유리우제고붕적반응솔화붕연소적열량석방。B2 O2（g）、HBO（g）화 MgCl2（g）적함량수압강적승고이증가，HCl（g）함량수압강승고이강저，H2（g）함량칙보지은정。연소압강월고，응취상산물분산성월호，평균립도월소。
The primary combustion temperature of the boron-based fuel-rich propellant was tested by the testing system of combustion temperature under pressures of 0.2,0.4,1.4 and 3.1 MPa.The Gibbs principle of minimum free energy was used to study the influence of the combustion pressure on the components and the Scanning Electron Microscopy (SEM)was used to observe the morphology characteristics of primary combustion products of the boron based fuel-rich propellant.The products in the primary combustion of boron-based fuel-rich propellant were B2 O3 , B4 C,BN,B,B2 O2 (g)and HBO(g).The contents of B and B4 C were relatively higher under low pressure and the reaction rate of B was fairly low.The contents of B and B4 C decrease obviously with the increase of the combustion pressure while the content of B2 O3 increases,showing that increasing the combustion pressure is beneficial to improve the reaction rate of B and the heat release of boron combustion.The contents of B2 O2 (g),HBO(g)and MgCl2 (g)increase with increase of the combustion pressure while the content of HCl(g)decreases continuously. The content of H2 (g)is not influenced by the combustion pressure.The SEM results show that the higher the combustion pressure,the better the dispersibility of the condensed-phase products,and the smaller the particle size becomes.
