Z. AKBAŞ, Z. AYDIN, H. KARAHAN, T. DİLSİZOĞLU, S. TURGUT

DOKUZ EYLÜL ÜNİVERSİTESİ MÜHENDİSLİK FAKÜLTESİ

Bu çalışmada, ultrasonikasyon işleminde prob çapının, TiO2 ve ZrO2 tozlarının yapısı ve morfolojik özellikleri üzerine etkisi incelenmiştir. Tozlara7 mm ve 40 mm çaplarındaki titanyum prob ile üretilen yüksek yoğunluklu ultrases dalgalarına maruz bırakılmıştır. X-ışını Kırınım (XRD) analizi ile ultrasonikasyon işlemi uygulanan tozlarda bazı yüzeylerin ortadan kaybolduğu ve bazı yeni yüzeylerin ortaya çıktığı bulunmuştur. Taramalı Elektron Mikroskopi (SEM) analizi bu yöntemle mikronaltı tane boyutlu tozların elde edilebildiğini göstermiştir.Büyük genlikli ultrasesüreten 7 mm çaplı probun küçük genlikli ultrases üreten 40 mm çaplı probdan daha etkili olduğu görülmüştür

EFFECT OF PROBE DIAMETER ON STRUCTURE AND MORPHOLOGICAL PROPERTIES OF TiO2 AND ZrO2 POWDERS IN ULTRASONICATION PROCESS

The effect of the probe radius on structural and morphological properties of TiO2 and ZrOpowders in ultrasonication process have investigated in this study. The powders have exposed the high-intense ultrasound generated by the titanium probes diameter of 7 mm and 40 mm. X-ray diffraction (XRD) analysis proved that the some phases of the samples have disappeared while the some new phases of them have emerged after ultrasonication. Scanning Electron Microscopy (SEM) showed that the submicron particles could be obtained by the method. 7 mm probe generated by a high amplitude ultrasound was more effective than 40 mm diameter generated by a lower amplitude ultrasound

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