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The present application relates to the technical field of fracturing proppants, and specifically discloses a fracturing proppant using magnesium-aluminum materials as raw materials and a preparation method thereof. A fracturing proppant using magnesium-aluminum materials as raw materials is made of the following raw materials by weight percentage: 50-60% bauxite; 20-30% jasper; 3-5% coal gangue; 8-10% modified magnesium-aluminum hydrotalcite; 4-6% iron ore; the modified magnesium-aluminum hydrotalcite is prepared by a method comprising the following steps: 1) taking magnesium salt and aluminum salt, adding them to deionized water and mixing them evenly to prepare a magnesium-aluminum solution; 2) adding sodium hydroxide, sodium benzenesulfonate, tetrabutylphosphine hydroxide, and a sintering aid to deionized water and mixing them evenly to prepare an alkaline solution; 3) dropping the magnesium-aluminum solution and the alkaline solution into a reaction vessel at the same time, stirring at high speed for 2-3h at a temperature of 60-90°C to obtain a colloidal precipitate, and then crystallizing the colloidal precipitate, washing, filtering, and drying.

This invention discloses a low-indium ceramic target, its preparation method, and its application. The low-indium ceramic target comprises the following components by mass percentage: indium oxide content of 50.2%–60.8%; zinc oxide content of 16.8%–25.3%; tin oxide content of 18.0%–28.3%; and metal oxide content of 0.10%–2.5%. The sum of the contents of all components is 100%. The metal oxide includes at least three of the following: praseodymium oxide, hafnium oxide, terbium oxide, dysprosium oxide, and cerium oxide. Increasing the density of the target and lowering the sintering temperature improves the mobility of the TCO thin film prepared from the low-indium ceramic target.