Search found 39 matches

by Yus
Sun Aug 01, 2021 3:28 pm
Forum: Painting The Sky
Topic: fountains
Replies: 13
Views: 4306

Re: fountains

Lloyd, Thank you!
by Yus
Sun Aug 01, 2021 8:27 am
Forum: Painting The Sky
Topic: fountains
Replies: 13
Views: 4306

Re: fountains

Lloyd, Have you open gold glitter composition? Thank you.
by Yus
Fri Jul 23, 2021 5:13 pm
Forum: Chemistry
Topic: Does potassium chlorate have different crystal shapes?
Replies: 13
Views: 2779

Re: Does potassium chlorate have different crystal shapes?

KClO3 has at RT only monoclinic structure. HT is stable above 523 K and has orthorhombic structure. Structure of HP KClO3 is rhombohedral (hexagonal).
RT = room temperature
HT = high temperature
HP = high pressure
by Yus
Thu Apr 15, 2021 4:22 pm
Forum: General Discussion
Topic: Ahhh! Back up again!
Replies: 3
Views: 1201

Re: Ahhh! Back up again!

I miss old forum format.
by Yus
Tue Mar 30, 2021 7:06 am
Forum: Useful files
Topic: AFN Articles
Replies: 57
Views: 39955

Re: AFN Articles

Richard! Thank you for sharing your nice articles!
by Yus
Fri Mar 26, 2021 8:47 am
Forum: Painting The Sky
Topic: fountains
Replies: 13
Views: 4306

Re: fountains

I like glittering fountain and use Win composition (KNO3 - 55%, Ba(NO3)2 - 5%, S - 10%, C - 10%, Al - 10%, mixture of Fe2O3, Fe3O4, SrCO3, BaCO3 - 10%. I have found one more commericial one, which produce glittering tails. I tried slow gold microstars, but it does not work properly. Any idea? Video ...
by Yus
Fri Mar 26, 2021 8:39 am
Forum: Painting The Sky
Topic: fountains
Replies: 13
Views: 4306

Re: fountains

Thank you.
by Yus
Fri Jan 22, 2021 11:30 am
Forum: General Discussion
Topic: WPA Seminars
Replies: 3
Views: 1342

WPA Seminars

https://www.westernpyro.org/seminars
You may join with your own presentation!
by Yus
Fri Jan 22, 2021 10:29 am
Forum: Painting The Sky
Topic: fountains
Replies: 13
Views: 4306

Re: fountains

Hi! What is Calcium Carbonate in fountain mix for? Thank you.
by Yus
Wed Apr 01, 2020 5:17 pm
Forum: Chemistry
Topic: A book for beginners?
Replies: 18
Views: 12381

Re: A book for beginners?

Thank you, Richard! I will contact she. As I know they sell papers by using paypal. I have planned to create account where to buy necessary articles.
by Yus
Wed Apr 01, 2020 12:50 pm
Forum: Chemistry
Topic: A book for beginners?
Replies: 18
Views: 12381

Re: A book for beginners?

Ben Lambert, What are you talking about? Who, Dr Tom Smith?
Jpyro is still working, pdf files are available?
by Yus
Wed Apr 01, 2020 9:13 am
Forum: Chemistry
Topic: A book for beginners?
Replies: 18
Views: 12381

Re: A book for beginners?

Anybody know if http://www.jpyro.co.uk/ is working? I would like to buy some articles there. Thank you.
by Yus
Tue Feb 04, 2020 6:02 pm
Forum: Chemistry
Topic: A book for beginners?
Replies: 18
Views: 12381

Re: A book for beginners?

Thank you, Richard.
by Yus
Mon Jan 20, 2020 5:41 pm
Forum: Chemistry
Topic: A book for beginners?
Replies: 18
Views: 12381

Re: A book for beginners?

What is difference between 1st and 3rd editions of Fireworks: The Art, Science, and Technique by Takeo Shimizu?
by Yus
Wed Oct 16, 2019 6:37 pm
Forum: Star Formulas
Topic: Chinese strobe/glitter composition from patents
Replies: 20
Views: 15254

Re: Chinese strobe/glitter composition from patents

Red + crackling = red strobe microstars.

https://youtu.be/lN4EmRcoOFQ
by Yus
Sat Oct 12, 2019 7:45 pm
Forum: Star Formulas
Topic: Chinese strobe/glitter composition from patents
Replies: 20
Views: 15254

Re: Chinese strobe/glitter composition from patents

OK. Thank you.
by Yus
Sat Oct 12, 2019 2:54 pm
Forum: Star Formulas
Topic: Chinese strobe/glitter composition from patents
Replies: 20
Views: 15254

Re: Chinese strobe/glitter composition from patents

1. Some of the abstracts in espacenet.com have bad translation. I also check originals. I agree that some compositions do not work properly. For example, red star from CN1598474 burn with white smoke. But corrected work better. 2. CN100999429 and CN103694071 give glitter effect. Close to Winokur one...
by Yus
Sat Oct 12, 2019 11:00 am
Forum: Star Formulas
Topic: Chinese strobe/glitter composition from patents
Replies: 20
Views: 15254

Re: Chinese strobe/glitter composition from patents

White flash-flower effect (CN1936492)

https://youtu.be/W_bT9_bOs9k
by Yus
Mon Oct 07, 2019 6:08 pm
Forum: Star Formulas
Topic: Chinese strobe/glitter composition from patents
Replies: 20
Views: 15254

Chinese strobe/glitter composition from patents

Have anybody used espacenet for searching chinese fireworks (strobe/glitter) composition and worked with them? https://worldwide.espacenet.com/advancedSearch?locale=en_EP I have found some. What do you thing they are correct? ----------------------------------------- Red flash inner core (CN1598474)...
by Yus
Tue Sep 10, 2019 5:01 pm
Forum: Media Room
Topic: New encyclopedic dictionary of pyrotechnics
Replies: 29
Views: 16207

Re: New encyclopedic dictionary of pyrotechnics

Thank you Pyro. I found him in facebook. He has unique name.
Redish glitter I saw ones. It was modified Win20 with lithium hyposulfite Li2SO2.
In other cases it was matrix comet (BP base and red strobe microstars).
https://youtu.be/1aqSQ60J4zg
by Yus
Sun Sep 08, 2019 3:11 pm
Forum: Media Room
Topic: New encyclopedic dictionary of pyrotechnics
Replies: 29
Views: 16207

Re: New encyclopedic dictionary of pyrotechnics

P.S. Pyro say hello to Dominykas Juknelevicius. When will he present his thesis about blue strobes?
by Yus
Sat Sep 07, 2019 12:12 pm
Forum: Media Room
Topic: New encyclopedic dictionary of pyrotechnics
Replies: 29
Views: 16207

Re: New encyclopedic dictionary of pyrotechnics

"New" encyclopedic dictionary of pyrotechnics is a nice book specially for the beginners. But it has a big drawback. Almost all presented compositions are old and don't use widely or forbiden to use. Modern ones are not listed at all. New effects and techniques are ommited or not described...
by Yus
Fri May 10, 2019 8:58 pm
Forum: Chemistry
Topic: Crackle research
Replies: 108
Views: 37676

Re: Crackle research

Thank you.
Microstars #1: My modification of chinese strobe.
Microstars #2: Shimizu composition.
Microstars #3: My version of crackle composition. It is related with KF's one.
Base: Shimizu composition.
by Yus
Thu May 09, 2019 10:25 pm
Forum: Chemistry
Topic: Crackle research
Replies: 108
Views: 37676

Re: Crackle research

Base: KNO3 - 50%, C - 38%, S - 12%. Microstars #1: Ba(NO3)2 - 65%, AlMg - 25%, Bi2O3 - 4%, S - 3%, Red Gum - 3%. Microstars #2: Ba(NO3)2 - 40%, S - 20%, AlMg - 40%, Red Gum - 3%. Microstars #3: CuO - 65%, Ba(NO3)2 - 10%, AlMg - 25%, Red Gum - 3%. Powder AlMg: d < 0.04 mm. https://youtu.be/dlkMKhfW2SY
by Yus
Thu May 02, 2019 10:27 pm
Forum: Chemistry
Topic: Crackle research
Replies: 108
Views: 37676

Re: Crackle research

1) Richard, it is always like that. We send article for free, but must pay for color pictures, or to download other papers from the same journal. 2) Swedish pyro, Loyd, today I rolled modified swedish crackle composition and standart ones by using 3% Red Gum and alkohol. Swedish crackle composition ...
by Yus
Wed May 01, 2019 8:47 pm
Forum: Chemistry
Topic: Crackle research
Replies: 108
Views: 37676

Re: Crackle research

Swedish Pyro, I also heard about such additions in crackling microstars. But practicaly I did not find them in chinese crackles. I analyzed many compositions, but always detected CuO/Bi2O3/AlMg. Chineses used quate simple compositions, but pyro technologies are more important and still unknown for u...
by Yus
Thu Apr 11, 2019 3:42 pm
Forum: Chemistry
Topic: Crackle research
Replies: 108
Views: 37676

Re: Crackle research

That's OK. Once I waited one year for publication. But usually It takes no more than three months after acceptance.
by Yus
Sat Mar 02, 2019 2:56 pm
Forum: Useful files
Topic: Nice Book
Replies: 14
Views: 8347

Re: Nice Book

Thank you very much!
by Yus
Sat Mar 02, 2019 10:34 am
Forum: Useful files
Topic: Nice Book
Replies: 14
Views: 8347

Re: Nice Book

Could anybody tell me, what is the content of "Fireworks From A Physical Standpoint". Thank you.
by Yus
Sat Mar 02, 2019 8:04 am
Forum: Useful files
Topic: Nice Book
Replies: 14
Views: 8347

Re: Nice Book

And? What is a content?
by Yus
Fri Mar 01, 2019 6:01 pm
Forum: Useful files
Topic: Nice Book
Replies: 14
Views: 8347

Re: Nice Book

Who knows content of four books Fireworks From A Physical Standpoint???
by Yus
Sun Feb 24, 2019 6:19 pm
Forum: Chemistry
Topic: Crackle research
Replies: 108
Views: 37676

Re: Crackle research

1) Richard, I strongly agree with you. A few years ago I started working with fireworks/pyrotechnics not as proffecional. But latter I decided to give my small work some scientific level. I have found many holes in the understanding of working some compositions. And some work was done. I like workin...
by Yus
Sun Feb 24, 2019 2:16 pm
Forum: Chemistry
Topic: Crackle research
Replies: 108
Views: 37676

Re: Crackle research

Richard, thank you very much for the fast response. It is just my oppinion. I thing due to many factors it is difficult to get reliable data/results using ONLY homemade equipment. By the way I like to work with Arduino too, and two of my colleagues construct and sell small devices based on microcont...
by Yus
Sat Feb 23, 2019 9:10 pm
Forum: Chemistry
Topic: Crackle research
Replies: 108
Views: 37676

Re: Crackle research

There are some thoughts and remarks on cracking microstars (for future work/paper). 1) Without XRD and SEM analysis is quate difficult to make certain conclusion. I have checked other papers on CuO/Al thermite and many of them used thouse technics. The best experimet is in situ XRD measurements upon...
by Yus
Wed Feb 20, 2019 9:43 pm
Forum: Chemistry
Topic: Crackle research
Replies: 108
Views: 37676

Re: Crackle research

Great job, Richard! Nice paper! I have received it as pdf file.
by Yus
Fri Feb 15, 2019 9:15 am
Forum: Chemistry
Topic: Crackle research
Replies: 108
Views: 37676

Re: Crackle research

Richard, that is great! When it will be available just send please doi. I have access to many journals. I also published a lot, but in solid state sciences.
by Yus
Thu Feb 14, 2019 5:52 pm
Forum: Chemistry
Topic: Crackle research
Replies: 108
Views: 37676

Re: Crackle research

Where will it be published? Is abstract available? What is "Research and development room"?
by Yus
Sun Feb 10, 2019 3:37 pm
Forum: Useful files
Topic: AFN Articles
Replies: 57
Views: 39955

Re: AFN Articles

Nice papers.