Ammonium perchlorate (AP) is a common oxidizer in composite propellants, and its combustion behavior can be tailored by micro- and nano-metal oxide catalysts. Ammonium perchlorate pellets were manufactured with micro- and nano-titanium oxide ( TiO 2 ) and iron oxide ( Fe 2 O 3 ) at several mass loadings (0–3%) to isolate their effects on AP. The samples were burned from 3.45 to 34.5 MPa (500–5000 psi) in a constant-volume strand bomb. Microscopy characterization was completed for both additives and representative pellets. The incorporation of 1% micro- Fe 2 O 3 yielded the highest burning rate within the investigated pressure range. All micro-additive formulations increased the burning rate at pressures ranging from roughly 13.45 to 17.24 MPa (1950–2500 psi) and from 4.50 to 8.60 MPa (650–1250 psi) for micro- TiO 2 and micro- Fe 2 O 3 , respectively, and these effects were dependent on catalyst mass loading. The burning rates were increased at pressures greater than 11.27 (1620 psi) and 8.27 MPa (1200 psi) for nano- TiO 2 and nano- Fe 2 O 3 , respectively. Both nano-additives yielded burning rates that were independent of mass loading within the range of evaluated concentrations (0.25–1%). In all cases, the presence of the catalytic additives removed the negative slope generally observed in the burning rate curve of plain AP. Higher low-pressure deflagration limits were observed for nano-additive formulations, potentially due to radiative heat losses.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Burning Rate Characterization of Ammonium Perchlorate Pellets Containing Micro- and Nano-Catalytic Additives



    Published in:

    Publication date :

    2022-09-01




    Type of media :

    Conference paper , Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    BURNING RATE CHARACTERIZATION OF AMMONIUM PERCHLORATE PELLETS CONTAINING NANO-CATALYTIC ADDITIVES

    Rodriguez, Felix A. / Thomas, James C. / Teitge, David et al. | TIBKAT | 2020


    Burning Rate Characterization of Ammonium Perchlorate Pellets Containing Nano-Catalytic Additives

    Rodriguez, Felix A. / Thomas, James C. / Teitge, David et al. | AIAA | 2020


    BURNING RATE CHARACTERIZATION OF AMMONIUM PERCHLORATE PELLETS CONTAINING MICRO- AND NANO-CATALYTIC ADDITIVES

    Rodriguez, Felix A. / Thomas, James C. / Teitge, David et al. | TIBKAT | 2020


    Burning Rate Characterization of Ammonium Perchlorate Pellets Containing Micro- and Nano-Catalytic Additives

    Rodriguez, Felix A. / Thomas, James C. / Teitge, David et al. | AIAA | 2020


    Burning Rate Characterization of Ammonium Perchlorate Pellets Containing Catalytic Additives

    Rodriguez, Felix A. / Thomas, James C. / Sammet, Thomas et al. | AIAA | 2019