Journal of Boron最新文献_第8页

Bor doplu CVD grafen üretimi ve yakıt pili performansı

Journal of Boron Pub Date : 2019-09-30 DOI: 10.30728/boron.593606

Mehmet Yazici, Fatma Gül Boyacı San

引用次数: 0

Bor Nitrür Nanoplateletlerin ve Nano Ag Takviyeli Yapısal Yapıştırıcıların Kayma Dayanımı

Journal of Boron Pub Date : 2019-09-30 DOI: 10.30728/boron.568138

Mürsel Ekrem

{"title":"Bor Nitrür Nanoplateletlerin ve Nano Ag Takviyeli Yapısal Yapıştırıcıların Kayma Dayanımı","authors":"Mürsel Ekrem","doi":"10.30728/boron.568138","DOIUrl":"https://doi.org/10.30728/boron.568138","url":null,"abstract":"Bu calismada, hava araclarinda kullanilan farkli bilesenli yapilarin hibrid nanoparcacik takviyesiyle epoksi yapistiricilarin kayma dayanimlari arastirilmistir. 8 kat 0°/90° duz dokuma karbon kumastan el yatirma teknigi vakum yardimiyla 1,7±0,1 mm kalinliginda uretilmistir. Uretilen karbon elyaf takviyeli epoksi kompozitler (KETEK) ile 2024-T3 Aluminyum (Al) levhalar modifiye edilmis epoksi yapistiricilarla tek tarafli bindirmeli baglanti olarak ASTM D1002-10 standartlarina gore test edilmistir. Al 2024-T3 malzeme ASTM D3933-98 fosforik asit anotlama ve KETEK numuneler ise ASTM D2093-03 standartlarina gore yuzey hazirlama yontemleri kullanilmistir. Epoksi recineye agirlikca %0,5 Bor Nitrur Nanoplateler (BNNPs) ile agirlikca farkli oranlarda (%0,5, 1,0 ve 1,5) nano gumus (Ag) parcaciklari ilave edilmistir. Hibrid nanoyapistiricilar ile referans numunelerin kayma dayanimlari, elastik modulleri ve kayma sekil degisimleri karsilastirilmistir. Hibrid nanoyapistirici sistemlerin kirilma analizi, taramali elektron mikroskobu (SEM) kullanilarak incelenmistir. Farkli sekil ve boyutlardaki nanomalzemelerin kirik yuzeylerde, destekledikleri farkli enerji dagitim mekanizmalari nedeniyle belirgin ozellikler sundugunu mikroyapilari ortaya cikarmistir. Modifiye edilmis epoksi yapistiricilarin termogravimetrik analizi (TGA) ile bozunma sicakliklari, termal kararliligi ve kalan kutle miktarlari karakterize edilmistir.","PeriodicalId":431027,"journal":{"name":"Journal of Boron","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131283241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

HEAT TREATMENT EFFECT OF HEXAGONAL BORON NITRIDE REINFORCED ELECTROLESS NICKEL COATINGS 六方氮化硼增强化学镀镍层的热处理效果

Journal of Boron Pub Date : 2019-09-30 DOI: 10.30728/boron.578022

M. Kocabaş, Halil Yilmaz, N. Cansever

引用次数: 1

Synthesis, characterization of 1,3-dimethyl-5-(3,5-dimethylphely)aminomethylenebarbiturate boron difluoride complex and investigation of photophysical properties 1,3-二甲基-5-(3,5-二甲基)氨基甲基巴比妥酸二氟化硼配合物的合成、表征及光物理性质研究

Journal of Boron Pub Date : 2019-09-30 DOI: 10.30728/boron.527576

Erkan Fırıncı

引用次数: 0

Triangular Potential Effects on the Fermi Velocity Renormalization in 8-Pmmn Borophene 三角形势对8-Pmmn硼罗芬中费米速度重整化的影响

Journal of Boron Pub Date : 2019-09-30 DOI: 10.30728/boron.599559

D. Akay

引用次数: 1

The Effect of B4C Amount on Wear Behaviors of Al-Graphite/B4C Hybrid Composites Produced by Mechanical Alloying B4C用量对机械合金化al -石墨/B4C杂化复合材料磨损行为的影响

Journal of Boron Pub Date : 2019-06-30 DOI: 10.30728/BORON.556707

I. Şimşek

{"title":"The Effect of B4C Amount on Wear Behaviors of Al-Graphite/B4C Hybrid Composites Produced by Mechanical Alloying","authors":"I. Şimşek","doi":"10.30728/BORON.556707","DOIUrl":"https://doi.org/10.30728/BORON.556707","url":null,"abstract":"In this study, wear behavior of composite materials produced by mechanical alloying method adding different amounts of B 4 C to Al-Graphite matrix were investigated. After adding 2% (vol.) graphite to the aluminum matrix, 3 different amounts (3%, 6% and 9%) of B 4 C were added. The composite powders prepared were mechanically alloyed for 60 minutes. The milled powders were cold-pressed under 700 MPa pressure. The green compacts produced were sintered at 600 °C for 120 minutes. The sintered B 4 C reinforced aluminum composite materials (AMCs) are characterized by the scanning electron microscope (SEM+EDS), X-ray diffraction (XRD), and hardness and density measurements. Wear tests were performed on a standard pin-on-disc wear testing device with a load of 20 N at a sliding speed of 0.5 ms -1 and four different sliding distances (250-1000 m). As a result of the studies, the hardness increases as the amount of B 4 C in the composite material increases, while the density of AMC decreases. As a result of the wear tests, the highest weight loss was obtained in the non-reinforced AlGr matrix alloy, while the lowest weight loss was obtained in 9% B 4 C reinforced composite materials. However, it was observed that there was a decrease in the friction coefficient with increasing amount of reinforcement.","PeriodicalId":431027,"journal":{"name":"Journal of Boron","volume":"329 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114799065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Bor katkılı pomza tuğla üretimi, fizikomekanik ve kimyasal özelliklerinin belirlenmesi

Journal of Boron Pub Date : 2019-06-30 DOI: 10.30728/BORON.415702

A. G. Çelik, Abdulkerim Yörükoğlu, Sedat Sürdem, A. Türker, Yasin Erdoğan

引用次数: 3

Bor karbür tozu üretiminde farklı karbon kaynaklarının faz oluşumu ve mikroyapı üzerindeki etkisi

Journal of Boron Pub Date : 2019-06-30 DOI: 10.30728/BORON.467351

Kamil Kiraz, Özge Balcı, Özge Çoşut, Tuğhan Akbaşak, B. Çiçek, Mehmet Somer

引用次数: 0

EFFECT OF BORON ON TRACE ELEMENT LEVEL İN PARACETAMOL INDUCED HEPATOTOXİCİTY MODEL

Journal of Boron Pub Date : 2019-06-30 DOI: 10.30728/BORON.518606

F. Çoban, Binnaz Kuru

{"title":"EFFECT OF BORON ON TRACE ELEMENT LEVEL İN PARACETAMOL INDUCED HEPATOTOXİCİTY MODEL","authors":"F. Çoban, Binnaz Kuru","doi":"10.30728/BORON.518606","DOIUrl":"https://doi.org/10.30728/BORON.518606","url":null,"abstract":"In this study, we have aimed to determine the relationship between the levels of total antioxidant-oxidant capacity, trace elements and protein carbonyl levels in paracetamol induced hepatotoxicity model and the effect of boron. We investigated the efficacy and antioxidant role of boron, which has the characteristics of protecting the oxidant/ antioxidant system in tissues and increasing the glutathione depots, in reducing the negative effects of paracetamol which is known to cause widespread and high doses of hepatotoxic damage. Trace elements are essential substances for the human body and are found in small amounts. In addition to the role of cofactors in many enzymes, also required for function. The experimental animals used in our study were divided into seven groups: Control, 2 g/kg paracetamol, 2 g/kg paracetamol + 50 mg/kg boric acid, 2 g/kg paracetamol + 100 mg/kg boric acid, 2 g/kg paracetamol + 200 mg/kg boric acid, 2 g/kg paracetamol + 140 mg/kg N-acetylcysteine 200 mg/kg boric acid. As a result of the measurements, serum paracetamol aspartate aminotransferase (AST), alanine aminotransferase (ALT) levels and analysis of tissue samples as a result of protein carbonyl (POC), total oxidant level (TOS) and oxidative stress index (OSI) levels increased, boron given groups significant decrease was observed. Paracetamol group protein thiol (P-SH), total antioxidant level (TAS) and trace element levels decreased while there was a significant (p<0.05) increase in boron groups. Trace element levels (Mg, Cu, Zn, Se) were significantly lower in paracetamol groups compared to control group (p<0.05) and Trace element levels (Mg, Cu, Zn, Se) were significantly (p<0.05) increased boron supplement group compared to paracetemol group. As a result, we observed that the damage caused by the paracetamol to the oxidant / antioxidant balance decreased with boron supplementation and it can be said that the boron exhibits antioxidant properties based on its effects on different parameters.","PeriodicalId":431027,"journal":{"name":"Journal of Boron","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125876628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

BORO-SİNTERLEME İŞLEMİNİN HAM T/M PARÇALARIN MİKROYAPI VE SERTLİK ÖZELLİKLERİNE ETKİLERİNİN İNCELENMESİ

Journal of Boron Pub Date : 2019-06-30 DOI: 10.30728/BORON.487811

Sinan Aksöz, Yavuz Kaplan, Engin Tan

引用次数: 1