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            <front>

                <journal-meta>
                                                                <journal-id>joinssr</journal-id>
            <journal-title-group>
                                                                                    <journal-title>Journal of Smart Systems Research</journal-title>
            </journal-title-group>
                                        <issn pub-type="epub">2757-6787</issn>
                                                                                            <publisher>
                    <publisher-name>Sakarya University of Applied Sciences</publisher-name>
                </publisher>
                    </journal-meta>
                <article-meta>
                                        <article-id pub-id-type="doi">10.58769/joinssr.1518309</article-id>
                                                                <article-categories>
                                            <subj-group  xml:lang="en">
                                                            <subject>Medical Devices</subject>
                                                            <subject>Biomedical Engineering (Other)</subject>
                                                    </subj-group>
                                            <subj-group  xml:lang="tr">
                                                            <subject>Tıbbi Cihazlar</subject>
                                                            <subject>Biyomedikal Mühendisliği (Diğer)</subject>
                                                    </subj-group>
                                    </article-categories>
                                                                                                                                                        <title-group>
                                                                                                                        <trans-title-group xml:lang="en">
                                    <trans-title>PRODUCTION OF MULTIFUNCTIONAL ALUMINA- ZIRCONIA COMPOSITE MATERIALS, INVESTIGATION OF THEIR MECHANICAL AND BALLISTIC PROPERTIES</trans-title>
                                </trans-title-group>
                                                                                                                                                                                                <article-title>ÇOK İŞLEVLİ ALÜMİNA-ZİRKONYA KOMPOZİT MALZEMELERİNİN ÜRETİMİ, MEKANİK ve BALİSTİK ÖZELLİKLERİNİN İNCELENMESİ</article-title>
                                                                                                    </title-group>
            
                                                    <contrib-group content-type="authors">
                                                                        <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0009-0001-1691-2608</contrib-id>
                                                                <name>
                                    <surname>Büyükdoğan Çavdar</surname>
                                    <given-names>Burcu</given-names>
                                </name>
                                                                    <aff>SAKARYA UYGULAMALI BİLİMLER ÜNİVERSİTESİ, LİSANSÜSTÜ EĞİTİM ENSTİTÜSÜ, METALURJİ VE MALZEME MÜHENDİSLİĞİ (YL) (TEZLİ)</aff>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                <name>
                                    <surname>Çelebi Efe</surname>
                                    <given-names>Gözde</given-names>
                                </name>
                                                                    <aff>SAKARYA UYGULAMALI BİLİMLER ÜNİVERSİTESİ</aff>
                                                            </contrib>
                                                                                </contrib-group>
                        
                                        <pub-date pub-type="pub" iso-8601-date="20241220">
                    <day>12</day>
                    <month>20</month>
                    <year>2024</year>
                </pub-date>
                                        <volume>5</volume>
                                        <issue>2</issue>
                                        <fpage>133</fpage>
                                        <lpage>148</lpage>
                        
                        <history>
                                    <date date-type="received" iso-8601-date="20240718">
                        <day>07</day>
                        <month>18</month>
                        <year>2024</year>
                    </date>
                                                    <date date-type="accepted" iso-8601-date="20241010">
                        <day>10</day>
                        <month>10</month>
                        <year>2024</year>
                    </date>
                            </history>
                                        <permissions>
                    <copyright-statement>Copyright © 2020, Journal of Smart Systems Research</copyright-statement>
                    <copyright-year>2020</copyright-year>
                    <copyright-holder>Journal of Smart Systems Research</copyright-holder>
                </permissions>
            
                                                                                                <trans-abstract xml:lang="en">
                            <p>In this study, armor materials from the mixture of Alumina (Al2O3), Zirconia (ZrO2) in various combinations and orders were produced. In order to make a comparison, 4 separate samples from only pure alumina, pure zirconia, homogeneously blending of the two powders at the same rate and with two powders layered were produced. Pressed under 500 MPa pressure, the specimens were gradually sintered in an open atmospheric furnace at 1630°C for approximately 30.3 hours. The dimensional changes of the samples after sintering were evaluated to be 3.89% in width and 3.73% in length. The densities of the products were found to be between the technical specification values. Microstructure and SEM analysis of the products show that the components are homogeneously distributed. Dominant phases were determined by XRD analysis. Configuration-1 has the highest tensile strength and configuration-2 has the lowest. The average fracture toughness of configuration-1, which is strong in mechanical properties, is 4.04 Mpam1/2, configuration-2 is 6.19 MPam1/2, configuration-3 is 5.73 MPam1/2 and configuration-4 is 5.42 MPam1/2. It is seen that the added ZTA leads to a decrease in the hardness of the products while increasing the toughness. When we examine the ballistic results, rapid camera recording was taken and monitored during the firing. The expectation from ceramics is that the ammunition should break the core at a minimum rate when it meets the ceramic. When all the studies were evaluated, the addition of ZTA did not cause a significant increase in hardness in the configurations. However, it was observed that the desired increase in toughness and rupture values was achieved. It is evaluated that the amount of ZTA can be reduced or increased according to the usage areas and purposes of the ceramics and the composition can be changed according to the purpose for which it will be used. If the ceramics are to be used against ammunition, it is thought that it would be appropriate to use them in different layers. It is thought that the results and interpretations obtained will shed light on future studies on this subject.</p></trans-abstract>
                                                                                                                                    <abstract><p>Bu çalışmada Alümina (Al2O3), Zirkonya (ZrO2) malzemelerinin karışımından çeşitli kombinasyon ve sıralarda zırh malzemeleri üretilmiştir. Karşılaştırma yapabilmek amacıyla sadece saf alüminadan, sadece saf zirkonyadan, iki tozu aynı oranda homojen harmanlayarak ve yine iki tozu katmanlı olacak şekilde 4 ayrı numuneler üretilmiştir. 500 MPa’lık basınç altında preslenen numuneler 1630oC’de açık atmosfer fırınınında kademeli olarak yaklaşık 30,3 saat sinterlenmiştir. Numunelerin sinter sonrası boyutsal değişimlerinin ende %3,89, boyda %3,73 olduğu değerlendirilmiştir. Ürünlerin yoğunluklarının teknik spekt değerleri arasında olduğu bulunmuştur. Ürünlerin mikroyapı ve SEM analizlerinden bileşenlerin homojen olarak dağıldığı görülmektedir. Hakim fazlar XRD analizi ile belirlenmiştir. Kopma mukavemeti en yüksek olan konfigürasyon-1, en düşük olan ise konfigürasyon-2’dir. Mekanik özellik olarak güçlü olan konfigürasyon-1’in kırılma tokluğu ortalama 4,04 MPam1/2, konfigürasyon-2’nin 6,19 MPam1/2, konfigürasyon-3’ün 5,73 MPam1/2 ve konfigürasyon-4’ün 5,42 MPam1/2’dir. İlave edilen ZTA’nın ürünlerde sertlik açısından düşüşe yol açarken tokluk artışı sağladığı görülmektedir. Balistik sonuçları incelediğimiz zaman atış yapılırken hızlı kamera kaydı alınmış ve izlenmiştir. Seramiklerden beklenti mühimmatın seramikle buluştuğu an çekirdeği minimum oranda kırmasıdır. Yapılan çalışmaların tümü değerlendirildiği zaman ZTA ilavesinin yapılması sertlik bakımından konfigürasyonlarda kayda değer bir artış yapmamıştır. Fakat tokluk ve kopma değerlerinde istenilen artışın sağladığı görülmüştür. Seramiklerin kullanım alanlarına ve amaçlarına göre ZTA miktarının azaltılıp artılırması sağlanıp, hangi amaçla kullanılacaksa buna göre kompozisyonun değiştirilebileceği değerlendirilmektedir. Eğer seramikler mühimmata karşı kullanılacak ise farklı tabakalarda oluşturulup kullanımının uygun olacağı düşünülmektedir. Elde edilen sonuçlar ve yorumlamaların ileride bu konuda yapılacak çalışmalara ışık tutacağı düşünülmektedir.</p></abstract>
                                                            
            
                                                                                        <kwd-group>
                                                    <kwd>Alümina seramikler</kwd>
                                                    <kwd>  Toz metalurjisi</kwd>
                                                    <kwd>  Zırh teknolojileri</kwd>
                                                    <kwd>  Balistik test</kwd>
                                            </kwd-group>
                            
                                                <kwd-group xml:lang="en">
                                                    <kwd>Alumina ceramics</kwd>
                                                    <kwd>  Powder metallurgy</kwd>
                                                    <kwd>  Armor technologies</kwd>
                                                    <kwd>  Ballistic testing</kwd>
                                            </kwd-group>
                                                                                                                                        </article-meta>
    </front>
    <back>
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