TY  - JOUR
T1  - Akımsız Kaplama Yöntemi ile CeO2 Takviyeli Ni-B Nanokompozit Kaplama Üretimi ve Karakterizasyonu
TT  - CeO2 Reinforced Ni-B Nanocomposite Coating Production and Characterization by Electroless Coating Method
AU  - Gültekin, Deniz
PY  - 2021
DA  - February
DO  - 10.35414/akufemubid.820183
JF  - Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi
PB  - Afyon Kocatepe University
WT  - DergiPark
SN  - 2149-3367
SP  - 209
EP  - 216
VL  - 21
IS  - 1
LA  - tr
AB  - Ni-B ve Ni-B-CeO2 nanokompozit kaplamalar nikel sülfat hekzahidrat, dimetilamin boran, sodyum asetat ve tiyoüre içeren kaplama banyosu kullanılarak akımsız kaplama işlemi ile üretilmiştir. Nanokompozit üretiminde kullanılan CeO2 nanopartikül takviyelerinin boyutu 100-500 nm aralığındadır. Takviye partiküllerinin banyo içerisinde kolay dağılımını ve ıslanabilirliğini artırmak için sodyum dodesil sülfat kullanılmıştır. Takviye partikül miktarı 15 gr/lt olarak seçilmiştir. Saf Ni-B ve nanokompozit Ni-B-CeO2 akımsız kaplamalar için banyo pH değeri 6, kaplama süresi 60 dakika ve banyo sıcaklığı 70 °C ± 5 °C olarak belirlenmiştir. Takviye CeO2 nanopartiküllerinin kaplamanın morfolojisi ve sertliği üzerindeki etkileri incelenmiştir. Yapılan karakterizasyon işlemleri sonucunda nanoboyutlu CeO2 partiküllerinin Ni-B alaşımına başarılı bir şekilde ilave edildiği ve nanokompozit kaplama üretiminin gerçekleştirildiği belirlenmiştir. Bununla birlikte takviye malzemenin etkisinin karşılaştırmalı olarak incelenmesi amacıyla aynı banyo bileşimi kullanılarak takviyesiz saf Ni-B kaplama da üretilmiştir. CeO2 nanopartiküllerinin Ni-B matrisine ilave edilmesiyle hesaplanan Ni kristal boyutu 43 nm'den 24,9 nm'ye düşmüştür. Ayrıca saf Ni-B alaşımı ile kıyaslandığında CeO2 takviyeli Ni-B nanokompozit kaplamanın sertlik değerinde de artış meydana geldiği belirlenmiştir.
KW  - Akımsız kaplama
KW  - Nanokompozit
KW  - Ni-B
KW  - CeO2
N2  - Ni-B and Ni-B-CeO2 nanocomposite coatings were produced by electroless coating process using a coating bath containing nickel sulphate hexahydrate, dimethylamine borane, sodium acetate and thiourea. The size of the CeO2 nanoparticle reinforcements used in nanocomposite production is in the range of 100-500 nm. Sodium dodecyl sulfate was used to increase the easy dispersion and wettability of the reinforcement particles in the bath. The amount of reinforcement particles is determined as 15 g/lt. For pure Ni-B and nanocomposite Ni-B-CeO2 electroless coatings, bath pH value was 6, coating time was 60 minutes and bath temperature was 70 °C ± 5 °C. The effects of CeO2 particles used as reinforcement on the morphology and hardness of coating were investigated. Nano-sized CeO2 particles were successfully incorporated into the Ni-B alloy and nanocomposite coating was produced. Also, Ni-B coating without reinforcement was produced using the same bath composition in order to compare the effect of the reinforcement material. Due to the incorporation of CeO2 nanoparticles in the Ni-B matrix, the calculated Ni crystal size decreased from 43 nm to 24.91 nm. In addition, it was determined that the hardness of the CeO2 reinforced Ni-B nanocomposite coating increased when compared to the pure Ni-B alloy.
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UR  - https://doi.org/10.35414/akufemubid.820183
L1  - https://dergipark.org.tr/en/download/article-file/1376763
ER  -