SU457120A1 - The method of electrophoretic deposition of fluorescent coatings - Google Patents
The method of electrophoretic deposition of fluorescent coatingsInfo
- Publication number
- SU457120A1 SU457120A1 SU1442891A SU1442891A SU457120A1 SU 457120 A1 SU457120 A1 SU 457120A1 SU 1442891 A SU1442891 A SU 1442891A SU 1442891 A SU1442891 A SU 1442891A SU 457120 A1 SU457120 A1 SU 457120A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- electrophoretic deposition
- coatings
- fluorescent coatings
- uniformity
- electrophoretic
- Prior art date
Links
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- Luminescent Compositions (AREA)
Description
1one
Изобретение относитс к области производства электронно-лучевых приборов, в частности к способу получени люминесцентных покрытий .The invention relates to the field of production of electron-beam devices, in particular, to a method for producing luminescent coatings.
Известны способы электрофоретического нанесени катодолюминесцентных покрытий из спиртовой среды.Methods are known for electrophoretic deposition of cathodoluminescent coatings from an alcohol medium.
Однако известные способы не позвол ют получать люминесцентные покрыти экранов, удовлетвор ющих требовани м злектронно-лучевых приборов с высоким разрешением, так как при этом не обеспечиваетс требуема плотность и равномерность структуры высокодисперсного люминофора с размерами частиц, не превышаюп ими 1,0 мкм.However, the known methods do not allow to obtain luminescent coatings of screens that meet the requirements of high-resolution electron-beam devices, since this does not ensure the required density and uniformity of the structure of a highly dispersed phosphor with particle sizes not exceeding 1.0 µm.
С целью получени высокодисперсных покрытий с улучшенной плотностью и равномерностью структуры по предлагаемому способу при электрофоретическом осаждении люминофора в качестве дисперсионной среды используют этанольный раствор полиметакриловой кислоты (молекул рного веса 1,0-1,5-10) с концентрацией в пределах 0,25-0,35 весовых процентов.In order to obtain highly dispersed coatings with improved density and uniformity of structure according to the proposed method for electrophoretic deposition of the phosphor, an ethanolic solution of polymethacrylic acid (molecular weight 1.0-1.5-10) is used as a dispersion medium with a concentration of 0.25-0 , 35 weight percent.
Пример. Дл приготовлени суспензии Example. For slurry preparation
раствор ют в 150 мл этилового спирта 0,45 г полиметакриловой кислоты, затем добавл ют 0,50 мл 20%-ного раствора азотнокислого стронци и 0,8-1,0 г люминофора А-1. Состав обрабатывают в акустическом поле на прот жении 30 мин при напр жении выхода 200-220 В и частоте 19 кГц.0.45 g of polymethacrylic acid is dissolved in 150 ml of ethyl alcohol, then 0.50 ml of a 20% strontium nitrate solution and 0.8-1.0 g of A-1 phosphor are added. The composition is treated in an acoustic field for 30 minutes at an output voltage of 200-220 V and a frequency of 19 kHz.
Нанесение экранов электрофоретическим способом провод т при напр жении 200 В и плотности тока на электродах 10 Ма/см.The application of screens by the electrophoretic method is carried out at a voltage of 200 V and a current density on the electrodes of 10 Ma / cm.
Таким образом, при использовании предлагаемого способа добиваютс высокой равномерности свечени и высокой разрешаюш,ей способности.Thus, when using the proposed method, a high uniformity of luminescence and a high resolution are achieved.
Предмет изобретени Subject invention
Способ электрофоретического нанесени катодолюминесцентных покрытий из спиртовой среды, отличающийс тем, что, с целью получени высокодисперсных покрытий с улучшенной плотностью и равномерностью структуры , в качестве дисперсионной среды используют 0,25-0,35%-ный этанольный раствор полиметакриловой кислоты молекул рного веса 1,0-1,5-10The method of electrophoretic deposition of cathodoluminescent coatings from an alcohol medium, characterized in that, in order to obtain highly dispersed coatings with improved density and uniformity of structure, 0.25-0.35% ethanol solution of polymethacrylic acid of molecular weight 1 is used as a dispersion medium, 0-1,5-10
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1442891A SU457120A1 (en) | 1970-05-25 | 1970-05-25 | The method of electrophoretic deposition of fluorescent coatings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1442891A SU457120A1 (en) | 1970-05-25 | 1970-05-25 | The method of electrophoretic deposition of fluorescent coatings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU457120A1 true SU457120A1 (en) | 1975-01-15 |
Family
ID=20453409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1442891A SU457120A1 (en) | 1970-05-25 | 1970-05-25 | The method of electrophoretic deposition of fluorescent coatings |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU457120A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5296117A (en) * | 1991-12-11 | 1994-03-22 | Agfa-Gevaert, N.V. | Method for the production of a radiographic screen |
-
1970
- 1970-05-25 SU SU1442891A patent/SU457120A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5296117A (en) * | 1991-12-11 | 1994-03-22 | Agfa-Gevaert, N.V. | Method for the production of a radiographic screen |
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