ipl-logo

Ccto10 Unit 2 Lab Report

335 Words2 Pages

K.D.A. Saboia et al., (2007) have been prepared the Bi4Ti3O12–CaCu3Ti4O12 {[BIT(X)–CCTO(100-X)]} composite powders through solid state reaction method and calcined in the range of 900 to 1020 ºC for 12 h. The as-prepared powders have modified in the form of thick film onto alumina ceramic substrate by utilizing screen printing. At 100 Hz, the value of dielectric constant (κ) of CCTO100 and BIT100 is 316.61 and 53.64 respectively. Conversely, the composite with X=20 % shows an unexpected dielectric constant of 409.71, which is around 20% higher in comparison with the CCTO. These measurements strongly suggest that the BIT–CCTO composite are good candidates for applications where one search for high-κ materials with low loss in radio-frequency range. …show more content…

G. Pinheiro et al., (2007) were screen printed the BITX–CCTO1–X (Bi4Ti3O12)X–(CaCu3Ti4O12)1-X composite thick films on alumina ceramic substrate. One can easily conclude that the increase of the BIT phase in the BITX–CCTO1–X composite is decreasing the κ value at 100 Hz of frequency. However the exploratory estimation of the dielectric constant for X = 0.1 is much higher when contrasted with this constituent phases (BIT and CCTO). It is a great suggestion that a nonlinear mixing effect is occurred between the two different constituent phases during the formation of composite matrix. Searching now for BTO–CCTO composites, which is a best choice for use in microwave devices like dielectric resonators due to their combined nature of high dielectric constant and low

Show More
Related

Nt1310 Unit 5 Lab Report

259 Words | 2 Pages

Typical sample dimensions 9.51 × 4.83 mm2in surface area and1.58 mm in thickness were coated with conductive silver paint formetallic contacts. The dielectric constant of the sample was mea-sured for the applied frequency that varies from 100 Hz to 1 MHz atdifferent temperatures (40◦C, 60◦C, 80◦C). The observations weremade while cooling the sample. The dielectric constant εrwas cal-culated using the relation, εr =

Read More

Nt1310 Unit 5 Lab Report

909 Words | 4 Pages

Such as,     2 2 2 , , r s s r r r s r r r L L R L R M L L M L PM L R            Where rd s i u  , , and r  : are respectively, the stator voltage, stator current, rotor flux and rotor speed. The indices d, q indicates a direct and quadrate index according to the usual d-axis and q-axis components in the synchronous rotating frame. M L L R R r s r s , , , , and  : are respectively, stator and rotor resistance, stator and rotor inductance, mutual inductance and total leakage factor. P, J, TL and f: are respectively, the number of pole pairs, the rotor inertia, the load torque and the friction coefficient.

Read More

Nt1310 Unit 1 Lab Report

1491 Words | 6 Pages

Introduction This is a report of discussion about Lab 1: Ethernet, which is using a software called as Riverbed Modeler Academic Edition (Edition 17.5). The topic is ‘A Direct Link Network with Media Access Control’. Objective The objective of this Lab 1 is to demonstrate the operation of the Ethernet network.

Read More

Nt1310 Unit 3 Lab Report

512 Words | 3 Pages

determine each pixel belongs to background or foreground. Wis the weights between the pattern and summationneurons, which are used to point out with which a pattern belongs to the background or foreground. They areupdated when each new value of a pixel at a certain position received by implementing the following function:Wt+1ib =fc(1−βNpn)Wib+MAtβ!(37)Wt+1i f=(1−Wt+1ib)(38)whereWtibis the weight between theith pattern neuron and the background summation neuron at timet,βisthe learning rate,Npnis the number of the pattern neurons of BNN,fcis the following function:fc(x)1,x>1x,x≤1(39)MAtindicates the neuron with the maximum response (activation potential) at frame t, according to:MAt1,f or neuron with maximum response0,otherwise(40)Function

Read More

Nt1310 Unit 1 Lab Report

173 Words | 1 Pages

(a) 3Mbps / 150Kbpa =3 X 1024 / 150 = 3072 / 150 =20.48 20 Users can be supported 150Kbps dedicated. (b)

Read More

TCO Movies: A Film Analysis

222 Words | 1 Pages

The performance of the optoelectronic devices can be improved by enhancing the optical and electrical properties of the TCO films. Much effort is going on in the research to enhance the device properties by improving the quality of the films. Annealing is one such effort to improve the crystallinity of the TCO films which can directly influence the quality of the film. It is well known that the material phases and compositions are highly dependent on the temperature under which they are held, as well as how long they are held there. The post annealing treatment can be used to improve the physical properties of the films because it could crystallize the amorphous portions of the film or it may reorient the existing crystallites.

Read More

Capacitor Lab Report

9386 Words | 38 Pages

INTRODUCTION 1. INTRODUCTION 1.1 Fundamentals of capacitor Capacitor is very useful component in the field of engineering and it is used in various electrical and electronic circuitries. Capacitor stores energy in the form of electric field. Capacitor also known as condensers which stores energy when charge and release energy when discharge . There are different forms of capacitors which are used widely, but common thing about this all capacitors is that they are made of two conductors separated by single layer dielectric of uniform thickness [1].

Read More

Ultrasound In Anaesthesia

2053 Words | 9 Pages

All piezoelectric transducers are made of ceramic. Materials generally used on the face of the transducer, it enables the sound waves to be transmitted efficiently into the body (usually a rubbery coating, which is a form of impedance matching). Also, generally a water-based gel is placed between the patient's skin and the probe for better conductance. Partially the sound wave is reflected from the layers between different tissues. There are density changes in the body e.g. blood cells in blood plasma, small structures in organs, etc.

Read More

Molybdenium Oxide Lab Report

1362 Words | 6 Pages

From the structural units view the introduction of MoO3 into composition converts symmetric BO3 triangles into BO4 tetrahedral or converts the latter into asymmetric BO3 triangles. Both the BO4 tetrahedral and asymmetric BO3 triangles are considerably denser than the symmetric BO3 triangles. [9] The average boron-boron separation (-- removed HTML --) calculated according the relation [19,

Read More

Task 1. Explain How A Capacitor Is Constructed?

791 Words | 4 Pages

Paper There are two types of paper capacitor metallized paper capacitor that is made from aluminium layer that is the electrode with a paper film layer as the as the dielectric that are rolled together into a cylinder as show below: And the other type being paper sheet capacitor that is made in a different way by layering layers of aluminium for the electrode and paper as dielectric layer shown below: These kinds of capacitors are often use in high power voltage and current circuits Ceramic Ceramic capacitor looks and are made differently as shown below: They are called ceramic as shown above the dielectric is made from ceramic that sperate the two layers of silver electrode. These are widely used as multipurpose capacitor due to their cheap cost for example high voltage laser power supplies, power circuit breakers and induction

Read More

Titanium Research Paper

995 Words | 4 Pages

However, among titanium and its alloy series, commercially pure titanium (cp-Ti) is the second most used for application in the aerospace, chemical industries, and medical devices. Titanium alloys have higher specific strength at elevated temperature than that of aluminum and steel alloys (Fig. 1.2). However, titanium is 40% lighter than steel and 60% heavier in comparison of aluminum. Titanium undergoes an allotropic transformation from the low temperature α (HCP) phase to the high temperature β (BCC) phase at 882±2 °C. Figure 1.3 shows α to β phase transformation.

Read More

Disadvantages Of Powder Metallurgy

1591 Words | 7 Pages

Powder metallurgy is defined as the process of mixing of powder materials in some desired ratio, compacting the powder mixture to some higher pressures in a compaction die so that the bond formation would takes place followed by the sintering process at higher temperatures (nearly around melting temperatures) so as to achieve sufficient strength. The resulting parts are solid bodies of material with sufficient strength and density for use in diverse fields. Highly porous parts, precise high performance components and composite materials can be produced by P/M route. P/M offers compositional flexibility, minimized segregation and ability to produce graded microstructures with varying physical and mechanical properties. P/M also offers advantages

Read More

Water Contamination Research Paper

972 Words | 4 Pages

However, there are still some difficulties hampering its wide application because it has a large band gap (3.2 eV) and absorbs only UV light (λ < 388 nm), which is about 5 % of the solar spectrum and the high charge recombination rate of charge carriers (electron–hole pairs) leads to its low photocatalyst efficiency [9]. In this sense, several materials have been used as support to reduce the band gap of TiO2 to absorbs sunlight such as doping with anions (N, S, F, C, P) [10-12] and cations (V, Cr, Co, Fe) [13-15], creating composites of TiO2 with other semiconductor having a relatively low band gap energy (CdS, ZnO particles) [16, 17], sensitization of TiO2 surface with dyes (thionine) [18]. There are several benefits of using CNTs in a fiber photocatalytic such as TiO2/CNT system because of its unique optical, magnetic, electrical, mechanical, thermal, gas adsorption properties, in addition exhibit large specific surface area to be a good catalyst support and also can be chemically modified to anchor TiO2 nanoparticles [19, 20]. Possession of high electrical conductivity along with a high electron storage capacity, CNT can acts as largely effective electron sink

Read More

Advantages And Disadvantages Of Epoxy Resins

2208 Words | 9 Pages

In recent years composites have been the subject of many scientific and research projects, as well as many commercial programs. Growing global ecological and social concern, the high rate of depletion of petroleum resources and new environmental policy has forced the search for new composites and green materials, compatible with the environment. Moreover calotropisgigantea fiber is a waste product. In recent years, scientists and engineers have been working mutually to use the inherent potency and routine of the fibers and nanoparticles in combination with natural to produce a new class of bio-based composites. The special challenges for this type of bio-composites are their eco attributes that make them environmentally friendly, completely

Read More

Perovskite Research Paper

1212 Words | 5 Pages

Von Perovski [1]. The original compound found was calcium titanium oxide (CaTiO 3 ). The name later was used to describe a general group of oxides possessing similar structures with

Read More

More about Ccto10 Unit 2 Lab Report

Open Document