Effect of Process Control Agents on the Synthesis of Tungsten Carbide Reinforced Copper Based Composite Powder Using Mechanical Alloying Method

Serkan Bıyık

Makale detayları

Effect of Process Control Agents on the Synthesis of Tungsten Carbide Reinforced Copper Based Composite Powder Using Mechanical Alloying Method

Yazarlar:

Serkan Bıyık

Yayıncı:

Bursa Uludağ University

Ana Başlıklar:

Makine Mühendisliği (Diğer)

Dergi:

Uludağ Üniversitesi Mühendislik Fakültesi Dergisi Vol.29 Issue 3, pp.713-724

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001333650

pISSN:

2148-4155

Anahtar kelimeler:

Özet:

 Tungsten carbide WC particle-reinforced copper Cu based composites, due to their wear resistance, hardness, high-temperature strength and excellent resistance to material transfer through arcing as compared to conventional materials, are used to produce electrical contact materials. WC is frequently used as a reinforcing material in production of electrical contact materials. CuWC composite powder can be produced using mechanical alloying MA technique by carefully optimizing a number of process parameters such as type and amount of process control agent, milling speed, ball-to-powder weight ratio and milling time. Therefore, this study investigated the effect of process control agent on the synthesis of CuWC composite powder. For this aim, three different powder mixtures containing Cu powder, WC powder and separately added solid process control agents stearic acid, polyethylene glycol and zinc stearate were milled in a ball-mill. The usage of zinc stearate was found effective up to 16 hours of milling whereas polyethylene glycol decreased milling efficiency to minimal value as compared to the other process control agents. In comparing average particle sizes and SEM pictures after 25 hours of milling, stearic acid was found the most suitable choice.

 Tungsten carbide WC particle-reinforced copper Cu based composites, due to their wear resistance, hardness, high-temperature strength and excellent resistance to material transfer through arcing as compared to conventional materials, are used to produce electrical contact materials. WC is frequently used as a reinforcing material in production of electrical contact materials. CuWC composite powder can be produced using mechanical alloying MA technique by carefully optimizing a number of process parameters such as type and amount of process control agent, milling speed, ball-to-powder weight ratio and milling time. Therefore, this study investigated the effect of process control agent on the synthesis of CuWC composite powder. For this aim, three different powder mixtures containing Cu powder, WC powder and separately added solid process control agents stearic acid, polyethylene glycol and zinc stearate were milled in a ball-mill. The usage of zinc stearate was found effective up to 16 hours of milling whereas polyethylene glycol decreased milling efficiency to minimal value as compared to the other process control agents. In comparing average particle sizes and SEM pictures after 25 hours of milling, stearic acid was found the most suitable choice.

 Tungsten carbide WC particle-reinforced copper Cu based composites, due to their wear resistance, hardness, high-temperature strength and excellent resistance to material transfer through arcing as compared to conventional materials, are used to produce electrical contact materials. WC is frequently used as a reinforcing material in production of electrical contact materials. CuWC composite powder can be produced using mechanical alloying MA technique by carefully optimizing a number of process parameters such as type and amount of process control agent, milling speed, ball-to-powder weight ratio and milling time. Therefore, this study investigated the effect of process control agent on the synthesis of CuWC composite powder. For this aim, three different powder mixtures containing Cu powder, WC powder and separately added solid process control agents stearic acid, polyethylene glycol and zinc stearate were milled in a ball-mill. The usage of zinc stearate was found effective up to 16 hours of milling whereas polyethylene glycol decreased milling efficiency to minimal value as compared to the other process control agents. In comparing average particle sizes and SEM pictures after 25 hours of milling, stearic acid was found the most suitable choice.

 Tungsten karbür WC parçacık-takviyeli bakır Cu esaslı kompozitler geleneksel malzemelere göre özellikle aşınma dayanımı, sertlik, yüksek sıcaklık dayanımı ve ark oluşumu ile gerçekleşen malzeme transferi üzerindeki olumlu etkileri sayesinde elektrik kontak malzemesi üretiminde kullanılmaktadır. WC, elektrik kontak malzemelerinin üretiminde sıklıkla takviye malzemesi olarak kullanılır. CuWC kompozit tozu; işlemkontrol katkısı cinsi ve miktarı, öğütme hızı, bilye-toz-ağırlık oranı ve öğütme süresi gibi birçok işlem parametresinin optimize edilmesi sayesinde mekanik alaşımlama MA yöntemi ile üretilebilir. Bu nedenle çalışmada işlem kontrol katkısının, CuWC kompozit toz sentezine etkisi araştırılmıştır. Bu amaçla Cu ve WC tozlarından oluşan karışıma katı işlem kontrol katkısı olarak stearik asit, polietilen glikol ve çinko stearat ayrı ayrı ilave edilerek oluşturulan üç farklı karışım bilyeli öğütücüde öğütülmüştür. Polietilen glikol kullanımında öğütme verimi en düşük seviyelerde iken çinko stearatın 16 saate kadar belirgin etkisi öne çıkmaktadır. Ortalama toz boyutu değerleri ve SEM görüntülerinin karşılaştırılmasından 25 saatlik öğütme sonucunda en uygun işlem kontrol katkısının stearik asit olduğu tespit edilmiştir.

Makale detayları

Effect of Process Control Agents on the Synthesis of Tungsten Carbide Reinforced Copper Based Composite Powder Using Mechanical Alloying Method

Yazarlar:

Serkan Bıyık

Yayıncı:

Bursa Uludağ University

Ana Başlıklar:

Makine Mühendisliği (Diğer)

Dergi:

Uludağ Üniversitesi Mühendislik Fakültesi Dergisi Vol.29 Issue 3, pp.713-724

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001333650

pISSN:

2148-4155

Copper based electrical contact materials

Zinc stearate

Process control agent

Polyethylene glycol

Stearic acid

Tungsten carbideBakır esaslı elektrik kontak malzemeleri

Çinko stearat

İşlem kontrol katkısı

Polietilen glikol

Stearik asit

Tungsten karbür

Sayı

Makale detayları

Yazarlar: Serkan Bıyık

Yayıncı: Bursa Uludağ University

Ana Başlıklar: Makine Mühendisliği (Diğer)

Dergi: Uludağ Üniversitesi Mühendislik Fakültesi Dergisi Vol.29 Issue 3, pp.713-724

Belge Tipi: Makale

Yayın Tarihi: 12/2024

Belge Dili: Türkçe

Document ID (Org No.): 2001333650

pISSN: 2148-4155

Sayı

Yazarlar:

Serkan Bıyık

Yayıncı:

Bursa Uludağ University

Ana Başlıklar:

Makine Mühendisliği (Diğer)

Dergi:

Uludağ Üniversitesi Mühendislik Fakültesi Dergisi Vol.29 Issue 3, pp.713-724

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001333650

pISSN:

2148-4155