User:Sdbz64/sandbox

History
The concept of brake pads or disc brakes as an alternative to drum brakes had been around at least as early as a patent by F. W. Lanchester in 1902. However, due to high cost and inefficiencies compared to drum brakes they were not commonly implemented until after World War II. Once the technology improved, brake pad performance quickly surpassed that of drum brakes. The performance difference was most noticeably exhibited in 1953 when a Jaguar outfitted with brake pads won the 24 Hours of Le Mans Grand Prix of Endurance race. The success of the Jaguar is commonly attributed to the car’s disc brakes, which allowed the drivers to approach turns faster and brake later than their opponents, which ultimately led to its victory. As late as 1963 the majority of automobiles using disc brakes were European made, with American cars adopting the technology in the late 1960s after the invention of fixed calipers that made installation cheaper and more compact.

Materials

 * The material's ability to resist brake fade, caused by an increase in temperature the material will experience from the conversion of kinetic energy into thermal energy.
 * The effects of moisture on brake fade. All brakes are designed to withstand at least temporary exposure to water
 * The ability to recover quickly from increased temperature or moisture, and exhibit approximately the same friction levels at any point in the drying or cooling process.
 * The friction coefficient of modern brake pads should be low enough prevent locking of the wheels but high enough to provide sufficient friction force. Friction coefficients are typically between 0.3 and 0.5 for brake pad materials.
 * The ability to resist wear due to friction.
 * The ability of the material to provide smooth and even contact with the rotor or drum, instead of a material that breaks off in chunks or causes pits, dents, or other damage to the surface in contact).
 * The ability to apply appropriate frictional force while also operating quietly.

Troubleshooting and Maintenance
Brake pads should be checked at least every 5,000 miles for excessive or uneven wear. Although brake pad wear is unique to each vehicle, it is generally recommended that brake pads be replaced every 50,000 miles.

Malfunctions with brake pads can have many effects on the performance of a vehicle. The following chart outlines some common issues that can be caused by brake pad malfunctions:

Peer Review by Sdbz64 (talk) 16:43, 22 March 2019 (UTC)
Peer Edits for Biomedical Sciences Article - Mtj522 and Squatch BH 1117 I think your ideas for how to edit the article are great; the UK definitely is not the only country that has contributed to this field so it would be awesome to see the contributions the rest of the world has made.

There don't seem to be too many original edits to the article, just a plan of things you want to update or improve. It seems like much of it is based on removing bias from the article and finding more reliable sources for the article. I have a few other suggestions of things to add:


 * Examples of biomedical technology from some of the fields listed to give people an idea of how broad the biomedical sciences field is
 * A history or timeline of field-changing biomedical science discoveries. I think this is the most important thing that needs to be added to the article

Someone mentioned that you would like to add a section on important figures in the field. I love the idea! You could even mention people from S&T such as Dr. Delbert Day, whose company Mo-Sci manufactures the bioglass that our Ceramic Engineering department is known for. This article needed a lot of improvement and I am excited to see how it turns out. Sdbz64 (talk) 16:42, 22 March 2019 (UTC)

Paragraph for Peer Editing
The concept of brake pads or disc brakes as an alternative to a drum brake had been around since a patent by F. W. Lanchester in 1902. However, due to high cost and inefficiencies compared to drum brakes they were not commonly implemented until after World War II. Once the technology improved brake pad performance quickly surpassed that of drum brakes, exhibited in 1953 when a Jaguar outfitted with brake pads that allowed for faster braking won the 24 Hours of Le Mans race. As late as 1963 the majority of automobiles using disc brakes were European made, with American cars adopting the technology in the late 1960s after the invention of fixed calipers that made installation cheaper and more compact.

The most important characteristics that are considered when selecting a brake pad material are as follows:


 * The material's ability to resist brake fade, caused by an increase in temperature the material will experience from the conversion of kinetic energy into thermal energy.
 * The effects of moisture on performance. All brakes are designed to withstand at least temporary exposure to water
 * The ability to recover quickly from either increased temperature, and exhibit approximately the same friction levels at any point in the drying or cooling process.
 * The friction coefficient of modern brake pads should be low enough prevent locking of the wheels but high enough to provide sufficient friction force. Friction coefficients are typically between 0.3 and 0.5 for brake pad materials.
 * The ability to resist wear due to friction.
 * The ability of the material to provide smooth and even contact with the rotor or drum, instead of a material that breaks off in chunks or causes pits, dents, or other damage to the surface in contact.
 * The ability to apply appropriate frictional force while also operating quietly.

Drafting Your Article
Partner sandbox link: User:Christopher White

What we want to change in brake pad.

History

 * Who invented them (Bertha Benz)
 * When they were first seen in automobiles
 * Background on material history
 * When any big material change movements happened

Technology

 * Important characteristics when selecting brake pad material
 * Advantages of brake pads over other types of braking system (i.e. brake linings)
 * Add more to the Types section
 * Remove "Italian producer" stuff (bad source)
 * Restructure "Materials" section

My Edits (Sdbz64)
The most important characteristics that are considered when selecting a brake pad material are as follows:


 * The material's ability to resist brake fade, caused by an increase in temperature the material will experience from the conversion of kinetic energy into thermal energy.
 * The effects of moisture on performance. All brakes are designed to withstand at least temporary exposure to water
 * The ability to recover quickly from either increased temperature, and exhibit approximately the same friction levels at any point in the drying or cooling process.
 * The friction coefficient of modern brake pads should be low enough prevent locking of the wheels but high enough to provide sufficient friction force. Friction coefficients are typically between 0.3 and 0.5 for brake pad materials.
 * The ability to resist wear due to friction.
 * The ability of the material to provide smooth and even contact with the rotor or drum, instead of a material that breaks off in chunks or causes pits, dents, or other damage to the surface in contact.
 * The ability to apply appropriate frictional force while also operating quietly.

Preparing Article Updates
From article:

The most important characteristics that are considered when selecting a brake pad material are as follows:


 * The material's ability to resist brake fade
 * The effects of water on brake fade (all brakes are designed to withstand at least temporary exposure to water)
 * The ability to recover quickly from either increased temperature or moisture
 * Service life as traded off with wear to the rotor
 * The ability of the material to provide smooth and even contact with the rotor or drum (instead of a material that breaks off in chunks or causes pits or dents).

Things to change:


 * The material's ability to resist brake fade due to wear or temperature.

Things to add:


 * The friction coefficient of modern brake pads should be low enough prevent locking of the wheels but high enough to provide sufficient friction force. Friction coefficients are typically between 0.3 and 0.5.
 * Add source

Group Article - Brake Pads

 * Why did you choose it? What's missing? What do you want to add?
 * The article doesn't have a history section for brake pads, which have been around and have been changing since start of the 20th century. We believe we have a lot to add in this area.
 * The other sections of the article have very few citations so we think we can add a few here and there.
 * The article is rated as a Start-Class so we feel confident that our edits will be a good addition to it.
 * Sources:
 * Coming soon!

Article Evaluation

 * Is everything in the article relevant to the article topic? Is there anything that distracted you?
 * The "Self-assembly" section and "Structural hierarchy" section are more of in-depth explanations of biology and metallurgy that do not make an obvious connection (at least for a standard reader with limited background knowledge) to the topic of the article: biomaterials.
 * Is any information out of date? Is anything missing that could be added?
 * This article appears to be pretty out of date since there are very few citations more recent than 2015. A relatively new area of biomaterials that could be added is bioactive glass.
 * What else could be improved?
 * I would improve the article by adding a section on the history of biomaterials. Based on the article's definition of biomaterial, people have been utilizing these for thousands of years, from false teeth to peg legs. The topic goes back way further than just 50 years, as stated in the article.


 * Is the article neutral? Are there any claims that appear heavily biased toward a particular position?
 * The article is mainly factual and does seem to be neutral.
 * Are there viewpoints that are overrepresented, or underrepresented?
 * The compatibility of biomaterials is explained multiple times in the article and could be considered overrepresented. Personally, the "Self-assembly" and "Structural hierarchy" sections seem overrepresented because they don't provide me with a clear understanding of how biomaterials work, which is what I think they are trying to explain.


 * Check a few citations. Do the links work? Does the source support the claims in the article?
 * I checked citation 14 which matched with the topic of surgical mesh, and citation 21 which also matches its topic of biopolymers.
 * Is each fact referenced with an appropriate, reliable reference? Where does the information come from? Are these neutral sources? If biased, is that bias noted?
 * There are a couple sections that have facts without a cited source. The last couple paragraphs of the "Structural hierarchy" section has some extremely specific facts with no source included. Is it possible to do this for things that may be found in many sources and are seen as "common knowledge"? If so, it wasn't common knowledge to me!
 * There is also a sentence after the list of applications of biomaterials that states that "manufacturing companies are required to ensure traceability..." that doesn't have a source; this is a legal thing so it should be public information and could easily have a link to a good manufacturing practices page or site from some government organization.


 * What kinds of conversations, if any, are going on behind the scenes about how to represent this topic?
 * The talk page mostly consists of people offering different opinions on the definition of a biomaterial and how to split this article up into different sections. 'Biomaterial' can be a slightly ambiguous name, and people seem to be more worried about this than actually improving the article.
 * How is the article rated? Is it a part of any WikiProjects?
 * This article is rated as a C-class article. It is in quite a lot of different WikiProjects: Physics, Chemical and Bio Engineering, Molecular and Cell Biology, Technology, Medicine, Genetics, Organismal Biomechanics, Materials.
 * How does the way Wikipedia discusses this topic differ from the way we've talked about it in class?
 * We did not talk about biomaterials in this class so there is nothing to compare.

citation test