FYI : Y40 the trade name Y40 (Chinese nomenclature) are Ferrite & Ceramic magnets are comprised of a combination of iron oxide and strontium carbonate. Low cost, light weight, a relatively high energy product, and good resistance to demagnetization account for widespread use of Ferrite & Ceramic magnets. Ferrite & Ceramic magnets (Y40 <http://www.ferrite-magnet.org/Y40-Cate39.html> ) have a max operating temperature of 480°F, which makes it a good choice for some high temperature applications. Common applications include: speaker magnets, motors, reed switches, and Hall-Effect devices.
https://www.diva-portal.org/smash/get/diva2:534040/FULLTEXT01.pdf Review of Magnetic Materials Along With a Study of the Magnetic Stability and Solidity of Y40 On Tue, Feb 21, 2017 at 12:38 PM, Brian Ahern <ahern_br...@msn.com> wrote: > Excess energy and magnetic cooling seem to poke up every now and then. It > is difficult for even the most dedicated technologists to connect phonons > with magnons. > > > I have had some unique experience with this interaction during my tenure > as a Staff Sientist at USAF Rome Lab in Lexington MA. I 1988 I was tasked > to understand the new cuprate superconductors. By shear luck I discovered > that MIT Professor Keith Johnson had solved the problem five years earlier. > In fact, his 1983 paper presented in Zurich directed Bednors and Meuller to > work on the cuprates. Bedorz was the leader of the conference in 1983. > > > He found that the superconduction arises when the Born-Oppenheimer > conditions are not met. That is, when the valence electron motion is > coupled to vibrational modes. The electrons are in molecular orbitals and > magnetism exists under very specific orbital topologies. > > > So magnetism (Specific electron orbitals conditions) and phonons can be > coupled under specific orbital conditions and one combination is shallow > well ferromagnetism. Like the superconductor coupling, specific coupling > can lead to coherent behavior as well in a ferromagnetic system. > > > More needs tobe said but there is some new physics at work in the Manelas > billet. > > > ------------------------------ > *From:* bobcook39...@gmail.com <bobcook39...@gmail.com> > *Sent:* Monday, February 20, 2017 1:56 PM > *To:* Chris Zell; vortex-l@eskimo.com > *Subject:* RE: [Vo]:Regarding what BOB COOK THINKS ABOUT THE NAE > > > Chris- > > > > I have understood that phonons are “virtual” particles that represent a > localized energy in a crystal lattice made up of kinetic energy and > potential energy in a resonant stable dynamic state. It is primarily > thought to be an electric field that couples the nuclei and electrons in > the lattice—primarily the valence electrons. The nuclei oscillate around > some mid position in the lattice and valence electrons change their > orbital spin states reflecting the motion of the nuclei. > > > > Temperature of the crystal lattice is a measure of the amplitude of the > nuclei special displacement around their mid position in the lattice. If > the crystal constitutes a coherent QM system, then all nuclei vibrate with > the same amplitude and the crystal is at a single temperature. If the > amplitude (temperature) get to high, the crystal electronic bonds fail and > the order of the crystalline coherent system is lost. > > > > Magnetic fields change the nature of the potential/kinetic energy > sharing. A preferred direction in the crystal is created relative to the > magnetic B field that exists within the crystalline coherent system. The > orbital spin energy states of the valence electrons are modified. Large B > fields can cause large changes in these orbital spin states. If there are > resonances between a nuclear orbital spin state of the coherent system and > an electronic orbital spin state, it would seem possible that spin energy > may be swapped, changing nuclear potential energy into PHONIC energy of > the crystalline coherent system. > > > > A variable B field induced by a variable ambient H magnetic field will > create a universe of differing spin energy states each with a small > difference in it angular momentum. If total angular momentum can be > conserved, IMHO A TRANSITION WILL OCCUR. > > > > It may be also possible that the transition is reversible. In such case a > reduction of the temperature—lower electron orbital energy—would be the > result. (Such a reversal suggests a new concept of temperature, one which > shares potential and kinetic energy between nuclear entities and electrons. > ) > > > > Bob Cook > > > > > > > > > > Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for > Windows 10 > > > > *From: *Chris Zell <chrisz...@wetmtv.com> > *Sent: *Monday, February 20, 2017 9:35 AM > *To: *vortex-l@eskimo.com > *Subject: *RE: [Vo]:Regarding what BOB COOK THINKS ABOUT THE NAE > > > > I do recall Wingate Lambertson - a scientist/expert on cermet products. > Odd semi-ceramic things he called “E-dams” that generated excess energy. I > recall that he passed away before it could be fully developed. It all > sounded like phonon derived energy. > > > > *From:* Jones Beene [mailto:jone...@pacbell.net] > *Sent:* Monday, February 20, 2017 11:14 AM > *To:* vortex-l@eskimo.com > *Subject:* Re: [Vo]:Regarding what BOB COOK THINKS ABOUT THE NAE > > > > > > Chris Zell wrote: > > If I google “phonons as an energy source”, nothing in particular comes > up. If we are identifying them as the likely source of excess energy > within a barium/strontium ferrite structure, I would think that someone > somewhere has thought about cohering them into useful energy. > > > > But if you google "Microelectromechanical systems" you will get 750,000 > hits. > > >
