检索结果-南通市图书馆

Preparation of Nano-TiO<sub>2</sub>Thin Film Using Spin Coating Method

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Minerals and Materials Characterization and Engineering 2013年第4期1卷 138-144页

作者： ayodele abeeb daniyan Lasisi Ejibunu Umoru Bankole Olunlade Department of Materials Science and Engineering Obafemi Awolowo University Ile Ife Nigeria Department of Materials Science and Engineering Obafemi Awolowo University Ile Ife Nigeria Engineering Materials Development Institute Akure Nigeria Engineering Materials Development Institute Akure Nigeria

This paper presented the preparation of TiO2 thin film on empty glass and Indium Tin Oxide (ITO) glass by spin coating method. Highly transparent titanium oxide thin films were obtained. The Optical absorption and transmission of the film prepared from both the synthesized and the commercially available TiO2 were measured by the UV-Visible Spectrophotometer. A sharp absorption edge of the TiO2 film was observed. The estimated energy band gap for the film of the commercially available sample was larger than that of the synthesized one.

关键词： Titanium Dioxide ITO Spin Coating Absorption Band Gap

Microstructures of Developed Composite Graphite-Resin Electrodes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Materials Sciences and Applications 2023年第12期14卷 526-534页

作者： Isaiah Adesola Oke Bolaji Aremo Dayo Adeyemi Isadare Olusegun Emmanuel Olorunniwo Sodrudeen Abolore Ayodeji Gbemi Faith Abass ayodele abeeb daniyan Department of Civil Engineering Obafemi Awolowo University Ile-Ife Nigeria Department of Materials Science and Engineering Obafemi Awolowo University Ile-Ife Nigeria Department of Materials Science and Engineering College of Mechanics and Material Hohai University Nanjing China

This paper focuses on the effects of compaction on the microstructure of graphite-resin electrochemical treatment electrodes. This was with a view to understanding the relationships between forming parameters and some performance-limiting structural parameters of the electrode. Graphite resin electrodes were developed from graphite rods reclaimed from primary cells. The rods were crushed to powder of various particle sizes and compressed into the graphite-resin electrodes. The microstructure of the graphite electrode was observed, effects of compaction force and particles sizes distribution on the microstructure of the electrodes were observed. SEM/EDX revealed that there is a lack of homogeneity in the distribution of micro-constituents, with compositional variations differing at the various spots. However, there is a prevalence of carbon and oxygen at almost all the spots. This tends to confirm the even distribution of the elements throughout the material. The pores in the electrodes were noticed to be uniformly sized and permeate throughout the entire structure of the electrode. These pores serve to increase the surface area of these electrodes and promote the adsorption of environmental pollutants.

关键词： Graphite Resin Electrodes Microstructure Compaction Force Particle Size

Electrical Properties of Nano-TiO<sub>2</sub>Thin Film Using Spin Coating Method

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Minerals and Materials Characterization and Engineering 2014年第1期2卷 15-20页

作者： ayodele abeeb daniyan Lasisi Ejibunu Umoru Adeniyi Yisau Fasasi Joseph Olatunde Borode Kunle Michael Oluwasegun Samuel Oloruntoba Olugbenga Olusunle Centre for Energy and Research Development Obafemi Awolowo University Ile-Ife Nigeria Department of Materials Science and Engineering Obafemi Awolowo University Ile-Ife Nigeria Department of Mechanical and Manufacturing Engineering University of Manitoba Winnipeg Canada Department of Metallurgical and Materials Engineering Federal University of Technology Akure Nigeria Engineering Materials Development Institute Akure Nigeria

This work investigated the electrical properties of TiO2 thin film on empty glass and ITO glass by spin coating method. Highly transparent titanium oxide thin films were prepared on empty glass and Indium Tin Oxide (ITO) from a titanium (III) chloride precursor. The sheet resistance of the film prepared from both the synthesised and the commercially available TiO2 was measured by the Keithley four-point probe tester (KFPPT). A comparable sheet resistance of 10.69E + 00 Ω/sq was obtained on the ITO. The electrical conductivity of the TiO2 film on ITO glass substrate was found to be very high (3.46E + 05 Ω-1?cm-1) and comparable to that of the bare ITO glass.

关键词： Titanium Oxide ITO Spin Coating KFPPT Sheet Resistance and Conductivity

Development of a Novel Oven-Furnace

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Minerals and Materials Characterization and Engineering 2017年第2期5卷 62-73页

作者： Olaniyi Gladius Babatunde Rufus Sola Fayose ayodele abeeb daniyan Theresa Chikwuo Ezenwafor Ebenezer Olubanji Oniya Nathaniel O. Ajayi Kunle Michael Oluwasegun Akintoye Oni Adedeji Akintunde Ajenifuja Arinola Gift Akinseloyin Adelana Razak Adetunji Samuel Oloruntoba Olugbenga Olusunle Adekunle Ajasin University Akungba Akoko Nigeria Engineering Materials Development Institute Akure Nigeria Obafemi Awolowo University Ile-Ife Nigeria

This research work is focused on the design and fabrication of Novel Oven-Furnace, using locally sourced materials for the purpose of carrying out drying and thermochemical treatments in accordance to the International Electric Equipment (IEE) regulations. Working drawings were produced, and mild steel sheet was used for the construction of the casing, while other materials for the construction were selected based on functions and properties of the materials, cost considerations and ease of fabrication into component parts. The design closely revealed the parameters and features of the furnace, but the control system was designed to function systematically as Oven and Furnace. Testing was carried out to evaluate the performance of the Oven-Furnace. From the result obtained, it was observed that the Oven-Furnace has fast heating rate which is comparable to rates of conventional brands of furnaces purchased from Germany or Canada. Unlike the ordinary furnaces, this equipment was designed to operate systematically to maintain constant temperature at any set temperature value. The lower cost of design of the Oven-Furnace coupled with its good heat retaining capacity, long estimated life time, uniform heating rate, controlled atmosphere, safety and ease of maintenance justifies the usage.

关键词： Design Oven-Furnace Constant Temperature Drying Thermochemical Treatment Systematic Function Control System