| 摘要: | 以商用回收玻璃再製成膨脹玻璃陶瓷顆粒做為填充材，藉由真空熔滲法制備三種粒徑(1、2、4mm)陶粒之A201鋁基多孔材後，施以頂時效(T6)、及過時效(T7)熱處理，以探討陶粒尺寸、熱處理對多孔材之界面接合性、顆粒形貌等、壓縮性質之影響，結果顯示，較小之陶粒，能較均勻分布於鋁基，且小顆粒陶粒顆粒表面孔洞較小，因此能降低鋁液灌入球體的風險，確保陶粒顆粒的完整性，鑄態下，粒徑最小的(1mm)多孔材，其壓縮應力(74MPa)、能量吸收(18J/g)，均高於4mm粒徑的多孔材，分別提升了32%(56MPa)、及29%(14J/g)，且經熱處理後之多孔材也有相同趨的勢；頂時效(T6)下，粒徑最小的(1mm)多孔材，其壓縮應力(114MPa)、能量吸收(28J/g)，均高於其鑄態的多孔材，分別提升了54%、及56%；過時效(T7)下，粒徑最小的(1mm)多孔材，其壓縮平台應力(102MPa)、能量吸收(26J/g)，均高於其鑄態的多孔材，分別提升了38%、及44%。;After preparing A201 aluminum-based porous materials with three different ceramic ball sizes (1 mm, 2 mm, and 4 mm) using the vacuum infiltration method, they were subjected to peak aging (T6) and over-aging (T7) heat treatments to investigate the effects of ceramic ball size and heat treatment on bonding, particle morphology, and compressive properties.
The results showed that smaller ceramic balls were more uniformly distributed in the aluminum matrix. Additionally, the smaller ceramic ball particles had fewer and smaller surface pores, reducing the risk of aluminum liquid infiltrating the ceramic balls and ensuring the integrity of the ceramic particles. In the as-cast state, the porous material with the smallest particle size (1 mm) exhibited a compressive stress of 74 MPa and an energy absorption of 18 J/g, which were 32% (56 MPa) and 29% (14 J/g) higher, respectively, than those of the porous material with a 4 mm particle size.
A similar trend was observed after heat treatment. Under peak aging (T6), the smallest porous material (1 mm) achieved a compressive stress of 114 MPa and an energy absorption of 28 J/g, representing increases of 54% and 56%, respectively, compared to the as-cast state. Under over-aging (T7), the 1 mm porous material showed a compressive stress of 102 MPa and an energy absorption of 26 J/g, which were 38% and 44% higher, respectively, than those of the as-cast material. |
