احمد منشی
دانشگاه صنعتی اصفهان
[ 1 ] - ساخت و مشخصه‌یابی غشای پلی‌کاپرولاکتون‌فومارات- ژلاتین الکتروریسی شده برای کاربرد بازسازی هدایت شده‌ی بافت پریودنتال
غشاهای مسدود کننده به منظور بازسازی بافت هدایت شده پریودنتال در دندان پزشکی، استفاده میشوند. هدف از این پژوهش، ساخت و مشخصه یابی غشای پلی کاپرولاکتون فومارات- ژلاتین به روش الکتروریسی برای کاربرد بازسازی بافت پریودنتال بود. ابتدا پلیکاپرولاکتوندیال و پلیکاپرولاکتون فومارات ساخته شد و به وسیله ی آزمایشات طیف سنجی تشدید مغناطیسی هسته(HNMR)، طیف سنجی فروسرخ فوریه(FTIR) و کروماتوگرافی ژل تراوا...
[ 2 ] - The Influence of Hematite on High Speed Continuous Casting of Steel Lubricating Powders: Viscosity and Crystallization
Mold powders used in the continuous casting of steel contain the harmful CaF2 as a main substance developing toxic gases such as SiF4 and HF at elevated temperatures. In this study, three samples of I1, I2 and I3, which contained gypsum free Portland cement clinker with different percentages of Fe2O3 (5.68, 6.83, 8.02 ...
[ 3 ] - The Impact of MnO, Li2O, ZnO and TiO2 on Mold Powders Viscosity Using Hot Stage Microscope Analysis
The aim of conducting this research was to evaluate the viscosity change in the continuous casting of steel mold powders by altering their chemical compositions, using hot stage microscope analysis. 4 low-fluorine samples containing such compositions as MnO, Fe2O3, Li2O, TiO2 and ZnO, as well as another fluorine-free sample containing a combination of Fe2O3 and TiO2, were prepared in this resea...
[ 4 ] - The Role of SiC and Different Binders on Mechanical Strength and Compaction of Silica Based Refractories Materials
Silica refractory bricks are used especially in the metallurgical industries, due to desirable properties such as high melting point, rigidity, and high temperatures strength. In this research, different amount of SiC were added to Silica refractory containing different binders such as Borax, Boric acid, Calcium nitride, Sodium tri poly phosphate, Sodium hexa meta phosphate (SHMP) and lime. Phy...
[ 5 ] - The Effect of Carbon Nanoparticles and Calcined Alumina on Mechanical Properties and Corrosion Resistance Behavior of the Magnesia Carbon Refractories
Nowadays, magnesia carbon refractories are very important for the iron and steel industries. It is due to their unique properties, such as low wet ability with melt iron and steel. Therefore, it is important to extend the life of the refractory. In this research, the effect of calcined alumina and nano carbon on mechanical strength and corrosion resistance against slag in magnesia carbon refrac...
[ 6 ] - Effect of TiO2 nanoparticles on the bond strength of CP Ti sheet by cold Rolling method
In this work, the strength of cold roll bond of the commercially pure titanium (CP Ti) sheet and the effect of TiO2 nanoparticles on bond strength was investigated. Through the accumulative roll bonding process, which is considered among the important severe plastic deformation processes, the creation of suitable bonds plays a significance role in the ultimate strength of the bond. Thus, resear...
[ 7 ] - Effects of Replacing Fluorine with Sodium and Titanium Oxides on Continuous Casting of Steel Mold Powders Lubrication
Mold powders are used as raw materials in continuous casting of steel industry; Also they are mostly composed of aluminum, calcium, silica oxides, alkaline and earth-alkaline oxides along with carbon and fluor. Two of the most important duties of mold powders are the lubrication of the space between mold walls and steel shell, and heat transfer control between steel shell and the copper mold. F...
[ 8 ] - تولید و مشخصه‌یابی پوشش نانوساختار تیتانات کلسیم با روش پوشش‌دهی غوطه‌وری سل- ژل
In the last decade, Calcium Titanate has been introduced as a bioceramic with acceptable mechanical and biological properties for orthopaedic implant applications. In this study, CaTiO3 nano-structure coating was produced by sol-gel dip-coating route for biomedical applications. Calcium nitrate and titanium isopropoxide were used as a precursor. After coating process, the specimen was subject...
[ 9 ] - In Vitro behavior of mechanically activated nanosized Si-Mg-doped fluorapatite
Hydroxyapatite (HA) is perhaps the most attractive material for bone repair, replacement and regeneration, due to its chemical composition and crystallographic structure which are similar to those of natural bone mineral. However, replacement of various elements and compounds in HA, could improve biological properties of this material. The aim of this study was preparation, characterization and...
نویسندگان همکار