CAJ | 학술논문

以棉梗粉末(C-stalk)为基材、电解紫铜粉末为强化因子，添加聚乙烯(PE)作为分散剂，采用温压成形法制备C-stalk/Cu复合材料标准试件和滑动轴承，测定该复合材料的静曲强度、内结合强度、吸水率、表面耐磨性、以及轴承的压溃强度与表观硬度，并观察试件的断口形貌。结果表明：C-stalk/Cu复合材料塑化充分、吸水率低，其静曲强度、内结合强度分别高达92.67 MPa和7.55 MPa，磨耗量仅为优等实木地板漆膜的1/2(＜0.05 g/100 r)，优于相对密度为80%的6-6-3青铜烧结材料；C-stalk/Cu复合材料制备的滑动轴承，其压溃强度、表观硬度分别高达105.2 MPa和55 HB，可望用来替代烧结青铜生产轻载滑动轴承。
이면경분말(C-stalk)위기재、전해자동분말위강화인자，첨가취을희(PE)작위분산제，채용온압성형법제비C-stalk/Cu복합재료표준시건화활동축승，측정해복합재료적정곡강도、내결합강도、흡수솔、표면내마성、이급축승적압궤강도여표관경도，병관찰시건적단구형모。결과표명：C-stalk/Cu복합재료소화충분、흡수솔저，기정곡강도、내결합강도분별고체92.67 MPa화7.55 MPa，마모량부위우등실목지판칠막적1/2(＜0.05 g/100 r)，우우상대밀도위80%적6-6-3청동소결재료；C-stalk/Cu복합재료제비적활동축승，기압궤강도、표관경도분별고체105.2 MPa화55 HB，가망용래체대소결청동생산경재활동축승。
Taking cotton stalk powder as substrate, electrolyte copper powder as intensifier and polyethylene (PE) for dispersant, C-stalk/Cu composite standard specimens and sliding bearings were prepared by warm compaction. Modulus of rupture (MOR), internal bond strength, water absorption and surface abrasive resistance of composite materials as well as crushing strength and apparent hardness of bearings were measured. Moreover, fracture morphology of specimens was observed. The results showed that C-stalk/Cu composite materials are plasticized abundantly with low water absorption, modulus of rupture and internal bond strength reached 92.67 MPa and 7.55 MPa, respectively. The abrasion loss (<0.05 g/100 r) only show half value as that of high-class solid wood floor coatings, which performed better than 6-6-3 silicon bronze material with relative density of 80%. The crushing strength and apparent hardness of the sliding bearing produced by C-stalk/Cu composite material can reach 105.2 MPa and 55HB, respectively. The composites can be used to produce fractional load sliding bearing and replace sintered bronze.