Talk:Phase-change material

message: In the table, Na2SiO3\cdot 5H2O is listed as having a melting point of 48oC, but its melting point is actually 72oC.  Na2SiO3\cdot 9H2O, on the other hand does melt at 48oC.  I would change it, 
76.120.179.248 (talk) 00:31, 6 July 2009 (UTC)
replies: text: If you read the reference, you will see that the value is indeed correct. MTessier (talk) 02:20, 5 November 2012 (UTC)
thread_title: Discussion

message: Why doesn't Sodium Acetate appear in the table of properrties, when it features in the illustration for the introduction of the article?
According to the (linked from the illustration caption) article on Sodium Acetate, the trihydride has "... latent heat of fusion is about 264–289 kJ/kg."
I would add this and other data from that article, but maybe there is a reason that it isn't mentioned. 101.117.138.24 (talk) 08:36, 13 July 2014 (UTC)
thread_title: Sodium acetate

message: The main tables on this page have a vast number of entries regarding different PCMs. For the table on Thermophysical properties of common PCMs the majority of these have been pulled from one research paper and a workshop ppt, whilst an impressive number of materials has been collected the details are very sparse. For about 80% of the materials only their latent heat values are listed - this is not sufficient information to compare - other physical properties such as the densities of the material are needed.
Would it not be more useful to have a short table, citing examples of different PCMs (eutectic, organic, inorganic) that are in use?
I have similar comments about the second large table in the article. There is a lot of information which isn't useful and it reads like a condensed catalogue. It might just be worth while having a single table listing common examples from literature than everything these specific manufacturers can produce.  — Preceding unsigned comment added by PaulRPG (talk • contribs) 20:42, 4 August 2015 (UTC)
thread_title:  Material Tables 

message: "They are also meant to discover minor elements in the earth." WTF does that even mean?
99.239.74.134 (talk) 11:36, 23 June 2016 (UTC)
thread_title:  Thermal Composites 

message: Can't those (polymorph, allotrope or polyamorph changes) be endothermic?  — Preceding unsigned comment added by Dqeswn (talk • contribs) 17:32, 19 November 2016 (UTC)
thread_title:  What about solid-solid phase transitions? 

message: In addition to the solid-solid comment above, there are quite a few other material classes in the standard list of PCMs. this includes both low and high temperature metallics (the table even lists a number of pure metals), salts (not hydrates), other organics like carboxylic acids and clathrate hydrates.  The solid states include the some pure organics, organic salts, organometallics, and recently has included solid-state (martensitic transformation) metals like NiTi shape memory alloys.  — Preceding unsigned comment added by Nrjank (talk • contribs) 00:14, 2 November 2020 (UTC)
thread_title:  Other material classes 

message: Dispersing thermally conductive nanostructures is an effective method to improve the thermal performance of phase change materials (PCMs). For this purpose, nanocarbons, nanometals, and nano metal oxides have been used to develop nano-enhanced phase change materials (NePCMs) with unique thermal properties. In 2007, Khodadadi and Hosseinizadeh firstly reported on the accelerated freezing process of water enhanced by Cu nanoparticles. They reported that the freezing time of water was shortened from 3000 s to 1400 s by dispersing 20 vol.% of nanocopper. After that research, various aspects of NePCMs were investigated by other researchers. 
Triplex shell-and-tube systems filled with NePCM, adding porous copper foam to NePCM, the effect of cavity aspect ratio on NePCM are some of these field that have been investigated yet.  — Preceding unsigned comment added by Adpn888 (talk • contribs) 10:59, 22 October 2021 (UTC)
thread_title:  Nano Enhanced Phase change Materials (NePCM) 

message: Should the list of common phase change materials be re-added? Not the list of every commercially available product but just the general common substances; such as water, salt, metals. The extended list was removed 11:33, 15 June 2022‎, and was a extensive removal edit. Thoughts on this anyone? 97.122.162.167 (talk) 15:09, 24 September 2023 (UTC)
replies: text: Thanks, I've been searching the web for this the whole afternoon. At least I know now what version to look for.. No doubt the petrol mafia at work... Yes, please add it back in. 217.149.164.213 (talk) 15:38, 16 October 2023 (UTC)
replies: text: You're welcome. I looked at the list years ago then came back for a reference and the whole list was missing. So I had to go find it. I'm glad that my trip down the rabbit hole helped. I do think that re-adding the common substances would add to the article but I still would like some discussions against or for. 71.218.83.204 (talk) 08:00, 21 November 2023 (UTC)
thread_title:  Re-add the list of phase change materials