Browsing by Author "Kalemtaş, Ayşe"
Now showing items 1-18 of 18
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Cellular response to calcium phosphate cements
Cecen, Berivan; Kalemtaş, Ayşe; Topates, Gulsum; Kozaci, Leyla Didem (Elsevier, 2020)Calcium orthophosphate (COP) ceramics have been investigated as bone repair materials for many decades. The first in vivo application of these materials was accomplished in 1920 to test tricalcium phosphate performance as ... -
Gözenekli Kordiyerit Küre Üretim ve Karakterizasyonu
Kalemtaş, Ayşe (Afyon Kocatepe Üniversitesi, 2019)Bu çalışmada milimetre boyutlarında küre formunda gözenekli kordiyerit seramiklerinin üretimi ve karakterizasyon çalışmaları gerçekleştirilmiştir. Kordiyerit küre üretiminde CC31, manyezit ve silika kullanılmıştır. ... -
Gözenekli müllit seramiklerin üretimi ve karakterizasyonu
Özey, Nigar (Bursa Teknik Üniversitesi, 2018)Bu tez çalışması kapsamında gözenek boyutu ve dağılımı kontrol edilebilen makro gözenekli, iğnemsi tane morfolojisine sahip müllit (3Al2O3.2SiO2) seramiklerin polimerik sünger yöntemiyle üretimi ve karakterizasyonu ... -
Graphene oxide and zinc oxide decorated chitosan nanocomposite biofilms for packaging applications
Terzioğlu, Pınar; Altin, Yasin; Kalemtaş, Ayşe; Bedeloğlu, Ayşe (Walter De Gruyter Gmbh, 2020)Recently, due to sustainable development and environmental protection policies, there is increasing interest in the development of new biodegradable polymer-based multifunctional composites. Chitosan is one of the most ... -
Mechanical and antibacterial properties of ZnO/chitosan bio-composite films
Kalemtaş, Ayşe; Koçer, Hasan Basri; Aydın, Ahmet; Terzioğlu, Pınar; Aydın, Gülsüm (WALTER DE GRUYTER, 2021)In the current study, ZnO/chitosan bio-composite films were produced via solution-casting method. Two different ZnO powders, micrometer (d(50) approximately equal to 1.5 mu m) and nanometer sized (d(50) approximately equal ... -
Natural calcium phosphates from fish bones and their potential biomedical applications
Terzioğlu, Pınar; Öğüt, Hamdi; Kalemtaş, Ayşe (Elsevier Science Bv, 2018)The treatment and recovery of bio-wastes have raised considerable attention both from the environmental and economic point of view. Every year, a remarkable amount of fish processing by-products are generated and dumped ... -
Nişasta konsolidasyon döküm yöntemi ile atık yumurta kabuğu kullanılarak gözenekli kalsiyum silikat üretimi
Kavçak, Özge (Bursa Teknik Üniversitesi, 2020)Tez çalışması kapsamında atık tavuk yumurta kabuğu ve silika kullanılarak nişasta konsolidasyon tekniği ile kalsiyum silikat esaslı biyoseramik malzemelerin üretimi gerçekleştirilmiştir. Yumurta kabuğundan biyoseramik ... -
Nişastayla Konsolidasyon Yöntemiyle Gözenekli Silika Esaslı Seramiklerin Üretimi
Kalemtaş, Ayşe (2016)Bu çalışmada, nişastayla konsolidasyon yöntemi kullanılarak hazırlanan gözenekli kristobalit esaslı seramiklerin göreceli olarak düşük sıcaklıkta üretilmiştir. Başlangıç tozu olarak Si3N4 tozu, sinterleme ilavesi olarak ... -
Peroksit vulkanizasyon sistemli etilen propilen dien kauçuk karışımlarının reolojik ve mekanik özelliklerini etkileyen faktörlerin incelenmesi
Bedel, Fatma Nur (BTÜ, Lisansüstü Eğitim Enstitüsü, 2021)Kauçuk malzemeler başta otomotiv sektörü olmak üzere havacılık, inşaat, elektronik, tekstil, beyaz eşya ve makinaların imalatında, tarım, giyim ve sağlık sektörü gibi geniş kullanım alanına sahip, yaşamımızın her alınanda ... -
Preparation and characterization of a novel ionizing electromagnetic radiation shielding material: Hematite filled polyester based composites
Belgin, E. Eren; Aycik, G. A.; Kalemtaş, Ayşe; Pelit, A.; Dilek, D. A.; Kayak, M. T. (Pergamon-Elsevier Science Ltd, 2015)Isophthalic polyester (PES) based and natural mineral (hematite) filled composites were prepared and characterized for ionizing electromagnetic radiation shielding applications. Density evaluation and microscopic studies ... -
Processing and applications of ceramic microspheres
Geçim, Gözde; Kalemtaş, Ayşe (Elsevier, 2021)This chapter is focused on processing techniques for dense, porous, and hollow ceramic microspheres and their applications. A large number of studies focused on modeling and observations from nature revealed that complex ... -
Processing of in-situ SiC reinforced AlN based composites
Kalemtaş, Ayşe; Arslan, Gursoy; Kaya, Pinar; Turan, Servet; Kara, Ferhat (Korean Assoc Crystal Growth, Inc, 2018)In this study, highly dense (>97%) in-situ SiC reinforced AlN based ceramic-metal composites were produced by pressureless reactive infiltration of 7075 aluminium alloys into porous alpha-Si3N4, alpha-Si3N4 + 4 wt. % carbon ... -
Processing of layered porous mullite ceramics
Kalemtaş, Ayşe; Ozey, Nigar; Aydin, Meryem Turkay Aytekin (Springer, 2018)In the current study, layered porous mullite ceramics with different pore sizes were produced via polymeric sponge method by using CC31 commercial-grade kaolin as starting raw material. Polyurethane sponges with three ... -
Production of Si3N4 porous beads via carbothermal reduction and nitridation technique
Topates, Gulsum; Kalemtaş, Ayşe (Taylor & Francis Ltd, 2020)Si(3)N(4)porous beads were produced from direct carbothermal reduction and nitridation of spheres composed of carbon+SiO(2)mixtures. A simple one-step sol-gel templating technique was used to prepare carbon+SiO2(molar ratio ... -
Production, characterization, and cytotoxicity of calcium phosphate ceramics derived from the bone of meagre fish,Argyrosomus regius
Aydin, Gulsum; Terzioğlu, Pınar; Öğüt, Hamdi; Kalemtaş, Ayşe (Springer, 2020)Hydroxyapatite ceramics derived from organic materials have similar physical properties and chemical content to stoichiometric hydroxyapatite ceramics produced via synthetic routes. The focus of the current study is to ... -
Review on extraction of polyhydroxyalkanoates and astaxanthin from food and beverage processing wastewater
Geçim, Gözde; Aydin, G.; Tavsanoglu, T.; Erkoç, Ertuğrul; Kalemtaş, Ayşe (Elsevier Ltd, 2021)The recovery of value-added products from food and beverage processing wastewater, polyhydroxyalkanoates, and astaxanthin, via various chemical and microbiological extraction techniques has been summarized in this contribution. ... -
Starch consolidation of SiC ceramics: processing and low-temperature sintering in an air atmosphere
Kalemtaş, Ayşe; Topates, Gulsum; Aydin, M. Turkay Aytekin; Ozey, Nigar (Taylor & Francis Ltd, 2020)Highly porous SiC ceramics containing borax decahydrate were produced by a starch consolidation method in which corn starch was used as a shaping and pore-forming additive. Four different compositions were prepared with ... -
Usability of natural titanium-iron oxide as filler material for ionizing electromagnetic radiation shielding composites; preparation, characterization and performance
Belgin, E. Eren; Aycik, G. A.; Kalemtaş, Ayşe; Pelit, A.; Dilek, D. A.; Kavak, M. T. (Springer, 2016)In the study, usability of natural titanium-iron oxide filler for ionizing electromagnetic radiation (IEMR) shielding composites with isophthalic polyester (PES) matrix was investigated for the first time. Shielding ...
