Coefficient of thermal expansion ( CTE) laboratory - Coursework Example

Comments (0) Cite this document
It has been found that Aluminum has the highest CTE followed by brass and steel. Large error was encountered in readings for Aluminum. Reasons for same have been…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER96.1% of users find it useful
Coefficient of thermal expansion ( CTE) laboratory
Read TextPreview

Extract of sample "Coefficient of thermal expansion ( CTE) laboratory"

Download file to see previous pages Coefficient of linear thermal expansion (CET), denoted by α, is indicative of how much a material will expand when heated. This expansion occurs as a result of increased vibrations of atoms owing of enhanced kinetic energy gained from the heat source. Consequently, the inter-atomic distance increases which ultimately causes the material to linearly expand.
CET is an inherent property of material and plays a significant role during material selection phase for fabrication jobs especially where high precision and accuracy is required over large thermal gradients.
Following table outline the consolidated results of the experiment. CTE using formula has also been calculated for each reading. Sample calculations are given thereafter. A graph for Extension (mm) against Temperature (oC) has also been plotted.
2) The large error in Aluminum up to 15558% is primarily due to human error. The readings may have not been noted accurately or the decimal place not marked in correct location. Systematic error can safely be ruled out since CTE of steel and brass and within acceptable error of 5.2% and 7.7% respectively
3) The slight error can be attributed to bias in noting down the temperature reading and extension precisely at the same time. Moreover, non-uniform heating, improper contact of temperature element and creep within the specimen due to multiple thermal cycles over time may have contributed to the variance in CTE. A dial gage itself is not an accurate device and electronic stain gages for measurement of extension can give more accurate results.
The results comply with the values taken from ASTM Handbook for metals for both steel and brass. Readings for Aluminum must be verified since the large error can only be attributed to human fault. For per degree rise in temperature, aluminum expands most followed by brass and then steel.
ASM International. "Thermal Expansion, Thermal Properties of Metals (#06702G)." ASME ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“Coefficient of thermal expansion ( CTE) laboratory Coursework”, n.d.)
Retrieved de
(Coefficient of Thermal Expansion ( CTE) Laboratory Coursework)
“Coefficient of Thermal Expansion ( CTE) Laboratory Coursework”, n.d.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF Coefficient of thermal expansion ( CTE) laboratory

Cte d'Ivoire Outline & Report

...?Cote d'Ivoire: Reviving the Lost Glory Outline I. Executive Summary II. Country Profile III. History IV. Political Organization V. Economic Organization VI. Major Issues and Challenges VII. Development Programs VIII. Program Evaluation Executive Summary Ivory Coast has been on a rollercoaster ride being up once then suffering a downward spiral. Despite being regarded as the top cocoa producer in the world, the country seemed to have a hard time making a leap. As compared to the other countries in West Africa, Ivory Coast possesses resources and developed infrastructure. But recent political problems as well as corruption and high poverty incidence have hindered any plans of growth. Since the issue of who will lead the country has...
10 Pages(2500 words)Research Paper

IAQ & Thermal Comfort

...? Indoor air quality and Thermal comfort Indoor air quality and Thermal comfort Thermal comfort and indoor air quality are considered amongst important factors when considering the quality of indoor environment. These factors are usually given much attention when designing buildings and structures in places that experience extreme variations in environmental conditions (Amissah, 2005). Examples of these areas include areas that experience low and/or high temperatures variations, and areas in which the quality of air is compromised (areas in which air is polluted, among other factors that interfere with the quality of air that humans breathe) among others (Al-ajmi, 2010). Both regional and...
10 Pages(2500 words)Research Paper

Curriculum Development for CTE

...with such skills like engineering and medicine which are of meaning to the expansion of the economy technologically (Wang & King, 2009). Reflections To evaluate the CTE program, the outcomes for the program must be measured for accuracy. This can be done through a survey, by conducting a research using a questionnaire to investigate the student remarks, or a sample research where samples of students are asked and data approximated. The CTE curriculum is aimed at helping students to acquire the basic skills through a clear organized and reflective program, which is its main purpose. The CTE program has tremendously assisted in my education because to a certain level the...
3 Pages(750 words)Research Paper

Gimi coefficient

... CRITICISIM OF GINI COEFFICIENT AS A MEASURE OF INEQUALITY Source: http Gini coefficient is a measure of inequality developed by the Italian statistician CorradoGini and this was published in his paper in 1912 "Variabilita e mutabilita" (Grossi, Marina, n.p). The ratio in the gini coefficient which is a technique used to measure inequality, lies between 0 and 1, in this 0 is denoted as perfect income equality which means all of them possess same income. And whereas 1 represents as perfect income inequality which means except all one has all the income. According to the ranges of gini coefficient, the developing or poor countries, those countries who have per captia GDP low, comes in the range... from...
3 Pages(750 words)Essay


...efficient patient information access and reports all throughout the hospital or any health care institute and beyond. Through IS Link, the HIS/RIS transactions automatically modify and upgrade patient data, reports, schedules, and study status for supreme convenience. Synchronization system between the HIS/RIS and System 5 efficiently provides access to the general current patient images as well as information as administration ensures data integrity and safety. RIS is also one system responsible for the maintenance of patient scheduling, demographics, financial information and interpretations of laboratory/examination results. Many RIS's may have been developed as well as applied independently of PACS chiefly...
6 Pages(1500 words)Lab Report

Coefficient of Variation

...1. The coefficient of variation is a relative measure of variability. Compared to absolute measures such as the standard deviation or the mean deviation, the advantage of the coefficient of variation is that it can be used to compare extents of variation across samples that use different measuring units or samples that have substantially different means. For instance if there were three stores A, B and C which were located in places so that the mean weekly sales revenues were drastically different, simply comparing the standard deviations of the sales would not provide clear picture of the true differences in variability across these stores. Instead by computing the coefficient of...
1 Pages(250 words)Assignment

Middle East CTE #2

...Middle East CTE Considering the facts such as two thirds of worlds known oil reserves being in the region and the enormous dependence of the industrialized world on fossil fuels, how do you perceive the future of oil and the Middle East? The Middle East has been the largest producer of oil in the globe for decades. The region produces 75% of the total global oil demand. The developed nations such as America and European countries have been the main beneficially of the Middle East oil. This indicates that there is a significant dependency of usage of fossil fuels and the future of the Middle East. The Middle East economies depend entirely on oil. Oil revenue constitutes about 80% of the GDP in the region (Akiner, & Aldis, 2004... East CTE...
2 Pages(500 words)Essay

Solar Thermal Energy

...Solar Thermal Energy Introduction During our physics lesson, we learn that there are good or bad conductors of heat. Also, aspects such as expansion and contraction are addressed. Usually, heat is a topic that is prevalent in physical sciences. But what is heat? Heat should not be confused with temperature. Heat can be described as the transfer of energy from an object that is at a higher temperature to an object at a lower temperature. A body does not possess heat. Instead, it possesses internal energy. This brings about the aspect of heat transfer. Heat energy is finding application in meeting crucial aspects of global needs. This is the aspect of meeting energy needs through the use of renewable...
3 Pages(750 words)Essay


...Question Is Syria a real threat to the American interests in the Middle East? Why? Why Not? Elaborate on your answer and give specific examples. Answer: In the recent years, the political and social changes in Syria have had a massive impact on the country’s internal and external affairs. This paper discusses numerous activities and facts about Syria that threaten the US interests in the Middle East. Around mid of the year 2012, the government of Syria declined the access of the UN observers to a site where mass killing was reported (Khan, 2012). According to the statistics reported by the Syrian opposition, up to 78 civilians were killed in that mass killing in which about 50 per cent were children and women. The Syrian... Is Syria a real...
2 Pages(500 words)Essay

History of CTE education

...History of CTE Education Nursing assistant program fits in the Career and Technology Education (CTE) continuum. CTE prepares students in high school for their future careers in different fields. Over the years, transition from high school to college has been rough for most students, as their fields of interest do not have prerequisite programs available. Career clusters will impart skills to the students in readiness for nursing assistant career. Community Nursing Assistant (CNA), a program at the Academy of Health Professions, that falls under CTE adequately, prepares students for future career in Nursing Assistant. Learning in the program is problem-based. The...
1 Pages(250 words)Assignment
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Coursework on topic Coefficient of thermal expansion ( CTE) laboratory for FREE!

Contact Us