[1] [1] KOZLOVA A P, GUBA N I, DROBOT I A. Comparative testing of one-coat enamels for pipes［J］. Glass and Ceramics, 2001, 58(1): 72-74.

[2] [2] FAN L, TANG F J, CHEN G D, et al. Corrosion resistances of steel pipe coated with two types of enamel by two coating processes［J］. Journal of Materials Engineering and Performance, 2018, 27(10): 5341-5349.

[3] [3] CONDE A, DE DAMBORENEA J J. Electrochemical impedance spectroscopy for studying the degradation of enamel coatings［J］. Corrosion Science, 2002, 44(7): 1555-1567.

[4] [4] PAGANELLI M, SIGHINOLFI D. Understanding the behaviour of glazes with the automatic heating microscope-analysis of softening temperature, viscosity and surface tension［J］. Ceramic Forum International, 2008, 85(5): 63-67.

[5] [5] SALEM S, JAZAYERI S H, BONDIOLI F, et al. Characterizing thermal behavior of ceramic glaze containing nano-sized cobalt-aluminate pigment by hot stage microscopy［J］. Thermochimica Acta, 2011, 521(1/2): 191-196.

[6] [6] BACHAR A, MABROUK A, DE SOUSA M D, et al. Study of the firing type on the microstructure and color aspect of ceramic enamels［J］. Journal of Alloys and Compounds, 2018, 735: 2479-2485.

[7] [7] FRBERG L, KRONBERG T, HUPA L, et al. Influence of firing parameters on phase composition of raw glazes［J］. Journal of the European Ceramic Society, 2007, 27(2/3): 1671-1675.

[8] [8] AHMED M, EARL D A. Characterizing glaze-melting behabior via HSM［J］. American Ceramic Society Bulletin. 2002, 81(3): 47-51.

[9] [9] BOCCACCINI A R, TRUSTY P A. In situ characterization of the shrinkage behavior of ceramic powder compacts during sintering by using heating microscopy［J］. Materials Characterization, 1998, 41(4): 109-121.

[10] [10] GARCIA-VALLES M, HAFEZ H S, CRUZ-MATAS I, et al. Calculation of viscosity-temperature curves for glass obtained from four wastewater treatment plants in Egypt［J］. Journal of Thermal Analysis and Calorimetry, 2013, 111(1): 107-114.

[11] [11] SCHOLZE H. Der einfluss von viskositt und oberflchenspannung auf erhitzungsmikroskopische messungen an glsern［J］. Berichte der Deutschen Keramischen Gesellschaft. 1962, 39(1): 63-68.

[12] [12] PASCUAL M, PASCUAL L, DURN A. Determination of the viscosity-temperature curve for glasses on the basis of fixed viscosity points determined by hot stage microscopy［J］. Physics and Chemistry of Glasses, 2001, 42: 61-66.

[13] [13] ZUCCHELLI A, DIGNATICI M, MONTORSI M, et al. Characterization of vitreous enamel-steel interface by using hot stage ESEM and nano-indentation techniques［J］. Journal of the European Ceramic Society, 2012, 32(10): 2243-2251.

[15] [15] YAN D M, QIAN H, HUANG Z H, et al. Study of lower temperature-sintered enamel coating on steel bars: effect of coating cycles［J］. Journal of Materials in Civil Engineering, 2020, 32(9): 4020262.

[16] [16] YAN D M, XU Z W, QIAN H, et al. Phase structure and corrosion resistance of multilayer low-temperature sintered chemically reactive enamel coatings［J］. Journal of Materials in Civil Engineering, 2020, 32(9): 4020249.

[17] [17] QIAN H, XU Z, CHEN S, et al. Silicon carbide/enamel composite coatings for steel corrosion protection: microstructure, thermal expansion behavior, and anti-corrosion performance［J］. Surface and Coatings Technology. 2022, 434: 128172.

[19] [19] PANNA W, WYSZOMIRSKI P, KOHUT P. Application of hot-stage microscopy to evaluating sample morphology changes on heating［J］. Journal of Thermal Analysis and Calorimetry, 2016, 125(3): 1053-1059.

[20] [20] STBILE F M, PICCICO M, SERRA M F, et al. Viscosity and thermal evolution of density and wetting angle of a commercial glaze by means of hot stage microscopy［J］. Procedia Materials Science, 2015, 9: 563-570.

[21] [21] ENGELS M. Bubble control in ceramic glazes, part 2［J］. Interceram, 2006, 55(3): 152-154.

[22] [22] MOHANRAM A, MESSING G L, GREEN D J. Densification and sintering viscosity of low-temperature co-fired ceramics［J］. Journal of the American Ceramic Society, 2005, 88(10): 2681-2689.