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Bu çalışmada, %0-20 atık cam tozları içeren aluminyum kompozit numuneler üretilmiştir. Farklı oranlarda cam tozu takviyesi içeren karışımlar yüksek devirli bilyeli öğütme işlemine maruz bırakıldıktan sonra tek eksenli hidrolik presleme ile şekillendirilmiştir. Sinterleme işlemleri mikrodalga fırında gerçekleştirilmiştir. Tekrar edilebilir uygun sinterleme sıcaklıkları ev tipi bir mikrodalga fırın başarılı bir şekilde modifiye edilerek elde edilmiştir. Sinterleme işlemleri 550oC’de 18 dk süre ile gerçekleştirilmiştir. Kompozit numunelerin faz içerik ve mikroyapıları incelemelerinde istenmeyen arayüzey reaksiyon ürünlerine rastlanılmamıştır. Sinterlenme sonrasında cam tozu katkılı numunelerdeki porozite miktarının ham durumdaki numunelere kıyasla azalması (%20 CT için %13’ten %8,5’e kadar), sinterleme işleminin göreceli başarısını göstermiştir. Numunelerin basma yüklemesi altındaki davranışları ve sertlik ölçümleri sonucunda, cam tozu takviye oranı arttıkça hem sertlik hem de basma dayanımı değerleri artış sergilemiştir.
In this study, samples of aluminum composite containing 0%-20% waste glass powder were produced. Mixes containing glass powder supplements in different proportions are shaped with single-axis hydraulic pressing after exposed to the high-voltage wire process. Sintering processes are carried out in the microwave oven. Repeatable suitable sintering temperatures are obtained by successfully modifying a home-type microwave oven. Sintering processes were carried out at 550oC with 18 minutes of time. In the examinations of phase content and microbuildings of composite samples, unwanted interface reaction products were not found. The decrease in the porosite quantity in the glass powder contributed samples after synthesis compared to the raw samples (from 13% to 8.5% for 20% CT), showed the synthesis process's relative success. As a result of the behavior and hardness measurements under the print load of samples, the increased amount of glass powder supplement has shown an increase in both hardness and pressure resistance values.
In this study, aluminum composite samples containing 0-20% waste glass powders were produced. Mixtures containing different amounts of glass powder reinforcement were shaped by uniaxial hydraulic pressing after subjected to high-speed ball milling. The sintering process was carried out in the microwave oven. Controllable suitable sintering temperatures were achieved by successfully modifying a domestic microwave oven. The sintering processes were performed at 550oC for 18 minutes. During the phase and microstructure analysis of composite samples, undesirable interface reaction products were not encountered. After sintering, the amount of porosity in samples with glass powder decreased compared to the samples in the green state (from 13% to 8.5% for 20% CT), indicating the relative success of the sintering process. When the mechanical behaviors of the samples under compression loading were examined, it was determine that the compressive strength values of the samples increased from 67 to 234 MPa, as fraction of the glass particles were increased. In addition, the microhardness value of pure aluminum (53 Hv) was increased to 77 Hv with 20% glass particle addition.
Field : Fen Bilimleri ve Matematik; Mühendislik
Journal Type : Ulusal
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