List of Articles Thermal degradation Open Access Article Abstract Page Full-Text 1 - Improving the Efficiency and Durability of Blast Furnace Air Tuyere Through Different Ceramic Coating Materials Hasan Bagheri Hasan Abadi Mohsen Hamedi Open Access Article Abstract Page Full-Text 2 - Effect of some additives on degradation of poly (vinyl chloride- co- vinyl Mohamamd Taghi Taghizadeh Abbas Agha Bozorgi Open Access Article Abstract Page Full-Text 3 - Thermal and catalytic degradation study of polyethylene and investigation the catalytic effect of X-Zeolite and Silica-Alumina on degradation kinetic Mohammad Taghi Taghizadeh Parinaz Seifi-Aghjekohal Ali Bahadori, Banafsheh Zeraatkar