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John Mauro
United States
Приєднався 31 січ 2012
Dorothy Pate Enright Professor and Associate Head for Graduate Education, Materials Science and Engineering, Penn State University | National Academy of Engineering | National Academy of Inventors | Editor-in-Chief, Journal of the American Ceramic Society | Grimdark Magazine | Before We Go Blog | SPFBOX Judge
Internationally recognized leader in fundamental and applied glass science. Inventor/co-inventor of new commercial glasses, including Corning Gorilla Glass products. Developer of new models for glass viscosity, relaxation behavior, topology, statistical mechanics, and more. Author of "Materials Kinetics: Transport and Rate Phenomena," the most comprehensive textbook on kinetics in materials science and engineering. Co-author of "Fundamentals of Inorganic Glasses" (3rd ed.), the definitive textbook on glass science and technology.
Internationally recognized leader in fundamental and applied glass science. Inventor/co-inventor of new commercial glasses, including Corning Gorilla Glass products. Developer of new models for glass viscosity, relaxation behavior, topology, statistical mechanics, and more. Author of "Materials Kinetics: Transport and Rate Phenomena," the most comprehensive textbook on kinetics in materials science and engineering. Co-author of "Fundamentals of Inorganic Glasses" (3rd ed.), the definitive textbook on glass science and technology.
Forming of Sheet Glass, Tubing, and Hollowware (Lecture 24, Glass Science)
Covers the crown process, Fourcoult updraw process, Pilkington float process, and Corning fusion draw process for making sheet glass; the Danner process and Vello process for making glass tubing and glass rods; the ribbon machine for making lightbulb envelopes; and the individual section machine for making glass bottles.
Переглядів: 36
Відео
Glass Batching, Melting, and Fining (Lecture 23, Glass Science)
Переглядів 1314 години тому
Cover batch materials, glass melting reactions, fining agents, and physical and chemical fining processes. Also covers defects that can occur during glassmelting, including gaseous defects (blisters, seed), solid defects (stones, primary and secondary crystallization), and inhomogeneities (cord, striae).
Fundamentals of Inorganic Glassmaking (Lecture 22, Glass Science)
Переглядів 9612 годин тому
Introduction to industrial glass manufacturing, including an overview of batching, melting, and forming steps, as well as the generation and use of glass cullet. This lecture also emphasizes the importance of liquidus temperature and reviews single-component, binary, and ternary phase diagrams, as well as the importance of eutectic compositions.
Thermal Expansion of Glass (Lecture 21, Glass Science)
Переглядів 15416 годин тому
Covers the coefficient of thermal expansion (CTE) of glass and supercooled liquids, the measurement of CTE using a dilatometer, the composition dependence of CTE in glass, and the vibrational and configurational contributions to CTE in the liquid state. Also covers ultra-low expansion (ULE) glass.
Composition Dependence of Viscosity (Lecture 20, Glass Science)
Переглядів 4016 годин тому
Covers temperature-dependent constraint theory, an extension of topological constraint theory that enables prediction of the composition dependence of glass transition temperature and fragility. Coupled with the MYEGA equation, this provides a complete description of the temperature and composition dependence of viscosity.
Models of Liquid Viscosity (Lecture 19, Glass Science)
Переглядів 7719 годин тому
Covers models for the temperature dependence of liquid and supercooled liquid viscosity, including the Vogel-Fulcher-Tammann (VFT) equation, the Avramov-Milchev (AM) equation, the Adam-Gibbs model (entropy model) of viscosity, and the Mauro-Yue-Ellison-Gupta-Allan (MYEGA) model. Also covers the fragile-to-strong transition.
Viscosity-Temperature Dependence (Lecture 18, Glass Science)
Переглядів 10614 днів тому
Covers the definition of shear viscosity, the temperature dependence of viscosity, viscosity reference points, viscosity measurement techniques, Angell's classification of strong and fragile liquids, non-Newtonian viscosity, and volume viscosity.
Hardness of Glass (Lecture 17, Glass Science)
Переглядів 8621 день тому
Covers the hardness of glass, including Vickers hardness, Knoop hardness, dynamic hardness measurements, and the composition dependence of hardness.
Elasticity of Glass (Lecture 16, Glass Science)
Переглядів 6021 день тому
Covers the elastic properties of glass, the relationship among Young's modulus, shear modulus, bulk modulus, and Poisson's ratio, the composition dependence of elastic properties, and the measurement of elastic moduli through beam-bending and resonant ultrasound spectroscopy.
LionGlass - B1G Impact Research - Penn State
Переглядів 18521 день тому
Big Ten Network showcases LionGlass in its B1G Impact Research segment. LionGlass is Penn State's patent pending invention that lowers the carbon footprint of glass manufacturing by more than half.
Density and Molar Volume of Glass (Lecture 15, Glass Science)
Переглядів 100Місяць тому
Covers the density & molar volume of glass and its dependence on glass composition, temperature, thermal history, pressure, and pressure history. Also covers polyamorphism.
Glass Composition-Property Relationships (Lecture 14, Glass Science)
Переглядів 88Місяць тому
General principles of glass composition-structure-property relationships, emphasizing the connectivity of the glass network and various types of modeling approaches, including linear regression modeling, nonlinear regression, and machine learning.
Non-Oxide Glasses (Lecture 13, Glass Science)
Переглядів 98Місяць тому
Covers chalcogenide glasses, metallic glasses, amorphous semiconductors, and metal-organic framework glasses.
Other Oxide Glasses (Lecture 12, Glass Science)
Переглядів 88Місяць тому
Introduction to the structure of phosphate, vanadate, aluminate, and germanate glasses, as well as mixed anion glasses (oxynitride and oxyhalide glasses).
Borate and Borosilicate Glasses (Lecture 11, Glass Science)
Переглядів 128Місяць тому
Covers borate, borosilicate, and boroaluminosilicate glass structure, including the boron anomaly.
Silicate and Aluminosilicate Glasses (Lecture 10, Glass Science)
Переглядів 140Місяць тому
Silicate and Aluminosilicate Glasses (Lecture 10, Glass Science)
Glass-Ceramics (Lecture 9, Glass Science)
Переглядів 161Місяць тому
Glass-Ceramics (Lecture 9, Glass Science)
Liquid-Liquid Phase Separation (Lecture 8, Glass Science)
Переглядів 153Місяць тому
Liquid-Liquid Phase Separation (Lecture 8, Glass Science)
Kinetic Theory of Glass Formation (Lecture 7, Glass Science)
Переглядів 387Місяць тому
Kinetic Theory of Glass Formation (Lecture 7, Glass Science)
Topological Theory of Glass Formation (Lecture 6, Glass Science)
Переглядів 2362 місяці тому
Topological Theory of Glass Formation (Lecture 6, Glass Science)
Structural Theories of Glass Formation (Lecture 5, Glass Science)
Переглядів 2633 місяці тому
Structural Theories of Glass Formation (Lecture 5, Glass Science)
Fundamentals of the Glassy State (Lecture 4, Glass Science)
Переглядів 2443 місяці тому
Fundamentals of the Glassy State (Lecture 4, Glass Science)
What is Glass? (Lecture 3, Glass Science)
Переглядів 3143 місяці тому
What is Glass? (Lecture 3, Glass Science)
Glass Compositional Families (Lecture 2, Glass Science)
Переглядів 3263 місяці тому
Glass Compositional Families (Lecture 2, Glass Science)
Applications of Glass (Lecture 1, Glass Science)
Переглядів 6323 місяці тому
Applications of Glass (Lecture 1, Glass Science)
Thermal and Electrical Conductivities (Chapter 26, Materials Kinetics)
Переглядів 3586 місяців тому
Thermal and Electrical Conductivities (Chapter 26, Materials Kinetics)
Chemical Reaction Kinetics (Chapter 25, Materials Kinetics)
Переглядів 1376 місяців тому
Chemical Reaction Kinetics (Chapter 25, Materials Kinetics)
Fluctuations in Condensed Matter (Chapter 24, Materials Kinetics)
Переглядів 1256 місяців тому
Fluctuations in Condensed Matter (Chapter 24, Materials Kinetics)
Monte Carlo Techniques (Chapter 23, Materials Kinetics)
Переглядів 2056 місяців тому
Monte Carlo Techniques (Chapter 23, Materials Kinetics)
Love this info, amazing resource and available for *free!* Thank you!!
You're so welcome! Thanks for watching!
Very nice summary presentation. A few minor critiques: 1. When discussing batching the at atmospheric conditions present above the glass melt should also be considered. For instance organic fuels can be a source of redox, contamination in fuel sources can enter the glass melt, and oxygen or hyderogen combustion can even infulence glass forming with generation of non-bridged oxygens. 2.When discussing gaseous defects sources such as refractory transperated gases/reactions or electochemical reactions with electrodes can generate seeds/blisters as well. 3.When discussing melting and fining the assumtion standard pressure is made in this presentation, this is rarely the case. Positive pressure in melting or negative pressure in fining can have a major influence. Small critiques overall but as a broad brief overview this is an excellent presentation. Looking forward to more similar content.
Thank you for raising all of these additional important points! Much appreciated.
Amazing lecture
Thanks a lot! I appreciate your kind comment.
Perfect!
Thanks!
REAL💥💥🔥🔥
Thank you!!
Tom Mauro approves of this message
Thanks!
very generous of you to upload this I just watched your series on crystallization which was absolutely amazing.
Glad you enjoyed it! Thank you very much for your kind comment!
Fantastic John! Onward and upward!
Thanks so much, Andrew!
Well-potential glass explorations 🔍Impact Research@John Mauro # great to see you💦💨🥳
Thanks so much!!
Sir all your videos is useful to me I studying MSc physics in india and I am indian. my seminar topic is vitreous silica and sio2 glasses that's why I watched many times to understand the concept however done my seminar last week thank you thankyou so much sir...
All the best to you! Thanks for your very kind note.
@@johnmauro1230Thank you sir ❤
Great lecture. Loved the Jurassic Park reference 😊
Glad you enjoyed it! Thank you!
As a trained Glassblower, i really enjoyed this video :)
Glad you enjoyed it! Thanks for your kind comment!
At 17:29 FQ the affinity associated with internal energy is defined to be 1/T. Later at 24:30 FQ is given as d/dx(1/T). Why are these different?
The d/dx is used for a continuous variation, rather than for discrete subsystem. Thanks for your great question!
Thank you Professor! Great content!
Glad you liked it!
Found this lecture a bit more hard going. Pair distribution function is a new concept to me though so I will need to read a bit more around that I think
Thanks for watching, and best wishes for your journey into glass structure!
Thank you very much, professor.
You are very welcome!
Nicely done!
Thank you! Cheers!
Dear Prof Mauro, thanks for making these wonderful videos available. They go so perfectly with your excellent book. I was wondering for multicomponent systems, such as binary glasses, would we solve the constraint equation independently for each locally rigid structural unit (former) to get the relative proportions? Thanks again.
Thanks so much for watching and for your kind comment and question. Yes, normally we consider each locally rigid structure independently and then put everything together for the system as a whole.
@@johnmauro1230 Thanks so much! And look forward to your next video.
what a wonderful world!! i'm really honor to your lecture. from KOREA
Thanks so much! Wishing you all the best!
Thank you for the great lecture, professor!
Glad you liked it!
@29:55 correction: amorphous silicon is a very small fraction of the PV market. The vast majority is crystalline silicon
Thanks for the correction!
@29:55 correction: amorphous silicon is a very small fraction of the PV market. The vast majority is crystalline silicon
Thanks for the correction!
How did I not know you were doing this?? Excited for class 😎🎉
Aw, thanks so much!! 💛
Dr. Mauro makes Glassy States FUN! yay💖
Aw, thank you! 💛
Thanks a lot for the really interesting lectures. I was just wondering if we can have access to the slides?
Feel free to email me. Thanks!
Very well explained. Thanks for sharing.
Glad it was helpful!
Thank you so much for this series! I find these topics to be ones that always benefit from reviewing regularly and these videos are invaluable for brushing up on a lot of these concepts!
Babe, wake up! Part two of the glass lecture dropped.
Thanks for watching!
Thank you, Professor, for all your invaluable efforts.
Glad you like them! Thank you very much!
Great news! I'm excited that you'll be lecturing on the glass book, just like you did with the kinetics book. Fantastic!
Thanks so much for all your support!
People with trypophobia might have difficulty with the cover page.
That's actually the failed first attempt at making a mirror blank for the Hale telescope, which you can see at the Corning Museum of Glass.
@@johnmauro1230 Oh, that's cool.
Congratulations professor John Mauro for this great opportunity to study glass science!
Many thanks! More videos to come!
thank you for your lecture professor
You are welcome
Just like Boltzmann you are also a great teacher.
Aw, thanks so much!! ♥️
What I dont understand is how you compute the w_{\apha \beta} in applications, if you requere to now what you are looking for in the first place (that is f_{\apha} the probability )
This calculation is just a weighted average of the transition rates from any of the basins in the first metabasin to any of the destination basins in the second metabasin.
The transition between metabasins w_{\alpha \beta} depend on the probability of the metabasin f_{\alpha} wich depend on time t. Then how this simplifies the problem if now you have coeffcients which depend on time? we start with transition that not depend on time (for temperature T constant)
Tha calculation is simplified because the time step becomes the natural time step of the experiment. In other words, the time savings is because the partitioning into metabasins satisfies the condition of internal ergodicity within each metabasin.
My paper was just rejected by JAcerS, can I resubmit it, professor?
Please send me an email with the details. Thanks!
Lord❤❤❤❤❤❤❤
Thanks Dr. Mauro. The video lectures have been a great help.
You are welcome! Thanks for your kind comment.
Beautiful god again❤❤❤
Thank you so much!
I love birds are happy about the eclipse for they are singing away!!!!❤❤❤❤❤😊😊😊😊😊😊😊
It reminded me of their evening songs! 🐦
Thank you for the excellent lecture; it was very informative. You mentioned non-viscous relaxation; is it possible to delay Beta relaxation? For instance, regarding gorilla glass, I understood from your discussion that excluding potassium from the parent glass composition is advantageous, suggesting that managing secondary relaxation largely involves compositional adjustments.
Yes, absolutely. Beta relaxation can be adjusted through compositional changes. Beta relaxation also has an Arrhenius (usually) temperature dependence and can be adjusted through temperature.
So useful lecture, Dr. Mauro. Thank you
Glad it was helpful!
Thank you for this amazing advice!
Glad it was helpful!
This is really good stuff John. For those looking to publish - this is very concise and well stated.
Thanks, Josh! I appreciate your kind comment! Thanks for taking the time to watch.
What an amazing summary! Professor, Do you have time to create a video presentation on the applications of AI and machine learning in materials research?😁
Thanks for this great suggestion! I'll put it on the list and see what I can do.
Thank you for the insightful lecture. I don't know if this is a suitable place to ask this question, but I hope so. you have mentioned the importance of the interior tension, and I am curious about the possibilities of manipulating or engineering the central tension. Is there an approach to achieving this? Additionally, the depiction of central tension as a straight line in figure 12.5 prompts me to ask whether this representation is exclusive. Can central tension adopt different shapes, perhaps akin to what I would describe as a "cat head-like shape"? I mean, doesn't it reach its peak immediately following the transition from compression to tension?
Yes, it's possible to tailor the stress profile, including both compressive and tensile regions. This can be possible using multiple ion exchange steps, or by using ion exchange in conjunction with thermal tempering or lamination. Thanks for your question!
I sincerely appreciate your efforts and thank you for the lectures.
Glad you like them!
It is another great lecture from a nice book! Congratulations professor John Mauro🎉!
Many thanks!
Thanks for uploading the amazing lecture!
You're very welcome! Thanks for watching and for sharing your kind comment!