RADIO PROTECTIVE GLASSES FOR DIFFERENT PURPOSE PRODUCTS

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Description of the project: Radioprotective materials are used to solve the problems of electromagnetic compatibility of radio electronic devices, to protect computer information processing systems from unauthorized access, to protect biological objects from electromagnetic radiation, as well as to reduce the radar signature of military and civilian objects. Glassy materials will make it possible to create radio-absorbing screens with a high level of absorption of electromagnetic radiation in the microwave frequency range.

Benefits:

Technical and economic indicators

The value of indicators at the beginning of the planning period

planned sample

the best domestic analogue

the best foreign analogues

radioprotective glass

TU 21-54-41-73

glass

Advantex

EN-1 glass

Frequency range, GHz

0.03 – 78

–

0.03 – 30

–

–

Attenuation, dB

20-30

–

20-40

–

–

The dielectric constant

from 3 to 9

–

–

7.2

 

5.1

Light transmission,%

70–90

–

–

–

–

Temperature dependence of viscosity

1013.5 –

530-550 оС

1012 –

580-600 оС

–

–

1013.5 – 736 ° C

1012 – 916 оС

1013.5 –

437 oC

1012 –

482 oC

Heat resistance, оС

120-150

–

–

 

–

Temperature coefficient of linear expansion (TCLE), K – 1

(30-60) ∙ 10-7

–

–

–

47 ∙ 10–7

Gas permeability

Gas tight.

–

–

 

–

Gas release

is absent

–

–

 

–

Density, kg / m3

2600-2800

–

–

2620

–

Cooking temperature, оС

1450 ± 25

–

1700-2000

1600

1550

Forming temperature, оС

1200-1250

–

1550-1650

–

1260

Annealing temperature, оС

580 ± 10

–

1080-1100

–

–

Results achieved: carried out as part of educational research work

Market and consumers:

  • to create radioprotective screens that significantly reduce the level of electromagnetic fields in special premises;
  • for the design of radio-absorbing and radio-protective products intended for anechoic shielded chambers (BEC) and rooms;
  • to create glass beads used as filler in paints for military equipment;
  • to create radioprotective materials and structures with specified parameters;
  • as radioprotective glass intended for window frames in childcare facilities, medical institutions and environmentally friendly residential buildings;
  • as ophthalmic lenses;
  • as dual-use radioprotective glasses.