It is noteworthy, the heat release rates (including the peak values) measured for fire-protected composites were significantly lower than those measured for their unprotected counterparts.
The cerium sealed anodized film effectively held back corrosive intermediate and protected the composite matrix.
As the ablation going on, a compact scale containing (La0.1Zr0.9 O1.95 and La2Zr2O7 was formed, which further protected the composites.
Scanning electron microscopy (SEM), microprobe analysis showed that the formation of a CaCO3 on the composite surface could not protect the composites from saltwater intrusion because the ruptures developed throughout the composites were too great.
The CT impedance of the S/N-CNT composite cathode slightly increases and stabilizes after the initial cycles, which could be due to the formation of an interfacial layer, which protects the composite cathode from further dissolution of sulfur but has slightly lower conductivity than the composite itself.
Oxidation tests reveal that formed coatings effectively protect C/C composite from oxidation: average percent of weight losses decrease from 30 to 1 wt.% and from 69 to 5 wt.% for the thermal (1150 K) and catalytic (920 K) oxidation tests, respectively.
Acetylene flame test showed that the HfC-based coating protected the C/C composite from serious oxidation.
The Mo Si B based coating effectively protected the SiC C composite with minimal weight lost due to the formation of a protective and continuous aluminoborosilica surface layer.
This nanotube/pH-responsive polymer composite protected the loaded drugs from premature release at pH ⩽ 6.5, but allowed their fast release and enhanced the drug permeability, and the inhibition of colon cancer cell proliferation at pH 7.4.
Moreover, the thermogravimetric and isothermal oxidation results indicated that the YSZ-LMS coating revealed superior oxidation protective ability at elevated temperatures, which protected the C/C composites from oxidation for 50 h at 1773 K with a mass loss of 0.58%.
HfSiO4 was formed during oxidation and characterized by a stable glassy phase which could protect C/C composites from oxidation.
