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Talk:Amorphous Metal Alloys

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Hi Mike, this is my peer review. I'll just outline what I think you should add or improve on section-by-section of your article. I've gone through and fixed any grammar/spelling mistakes I could find. At the end I'll leave some general comments and suggestions. Obviously feel free to ignore any of the following suggestions:

Introduction: Firstly, put the picture in a thumbnail on the right side with Image:file_name|thumbnail (also cite it). Make sure to put wiki links to 'amorphous', 'Young's Modulus', and 'slip planes'. Also make sure to fully explain what you mean by amorphous, since this property is what makes your material unique. Consider putting a picture of an amorphous microstructure to illustrate your descriptions.

History: This section is okay, but also include a little more recent history about these alloys. This is a good place to detail some really cool and important applications of metal glasses. Isn't it a good candidate for biomaterials?

Forming: Consider changing the title to "Formation" just for clarity. Cite the "confusion principle" as you likely didn't coin the term. One thing I didn't understand was the meaning of the "critical cooling rate." Do you mean the minimum or the maximum rate required to obtain amorphous alloys? and at what point is a metal considered amorphous? Is there a percentage of amorphous-ness required? These are all basic things that are somewhat obvious but I still think you should mention. THe table is good, just center it and reference it.

Mechanical Properties: This section is good. The only thing I would say is to make sure to define all of your variables (for example, what is Hv?). Again, center and cite the table.

Formation Methods: Die Casting: I know its obvious to us but you need to explain (with a diagram?) what exactly Die Casting is. Also, you need more technical specifications in your description so that anyone else can use your article as a reference to perform the synthesis. Whats the melting temperature? What's a suitable range of cooling rates? How exactly is the material cooled? Is it quenched in water? air?

Thermoplastic Forming: Please edit this sentence: "Certain alloys of BMG’s are resistant enough to crystallizing that enough time exist to carry out the thermoplastic forming process while maintaining desired the properties of the part." The diagram is good - thumbnail it and reference it. Again give more specifics so that anyone can perform this type of material processing.

Limitations: What you've included about limitations of BMGs is good. Also include the economic limitations - how much does it cost to produce one gram of this type of material? How does it compare to other materials and is it worth the extra cost? What research is being done to improve the synthesis process so that one day amorphous metal alloys CAN be economically feasible. As I understand it this should be a pretty detailed section in your article.

Applications: This is a good place to detail some really cool and important applications of metal glasses. Isn't it a good candidate for biomaterials? Otherwise what you have is good.

Overall:
1 - I'm sure you already know this but do all of your references properly by {ref}...{/ref}.
2 - Your article is lacking a section on improving the materials or energy efficiency of the material process. Is there a way to perform die casting in a more efficient manner? Off the top of my head: Are there other methods being explored that can perform this synthesis at much lower temperatures? Or are there ways of mass-producing these materials so that you can make more BMG in the same amount of time? This is the research intensive part of your project, and it should make up a big chunk of your appropedia page.
3 - Can you find a better picture? The wikipedia article picture is unimpressive.

Danpaz 05:20, 19 November 2009 (UTC)

Ditto on Dan's last three main points[edit]

--Joshua 13:29, 20 November 2009 (UTC)