RU107339U1 - CERAMIC-CONTAINING DYNAMICALLY HIGH-STRENGTH MATERIAL (DVM) - Google Patents

Abstract

 Ceramic-containing dynamically high-strength material (DVM), comprising a shell of several layers of a polyaramide fabric impregnated with a polymeric binder, ceramic tiles and a base of a composite consisting of several layers of a polyaramide fabric impregnated with a polymeric binder, characterized in that it contains ceramic tiles having a one-sided coating applied by detonation, with a thickness of 0.5-1.5 mm from corundum, modified with particles of metal alloys on a nickel or copper base, with a roughness Rz = 10 μm.

Description

The claimed utility model relates to armor, in particular multi-layer, and can be used to protect equipment, cars, including armored vehicles such as the Tiger, Wolf, trucks (KAMAZ, etc.), railway cars, ships from being hit by bullets and fragments.

For the manufacture of structures designed to hold high-energy ballistic impact, multilayer dynamically high-strength materials (DVM) are used in the form of armor panels (armor barriers), which consist of:

- decorative protective layer (shell);

- front layer - ceramic tiles;

- a connecting (adhesive) layer;

- supporting layer (base).

The protective properties of armored vehicles are evaluated in accordance with GOST R963-96 according to the classes characterizing resistance to the effects of means of destruction with a single hit. The highest classes of armored obstacles are 6 and 6a. The most important indicators of armored barriers are also “survivability”, which characterizes resistance to the effects of weapons at a 3-fold impact (non-penetration and absence of destruction of adjacent tiles should be ensured).

Known DVM armor panel, consisting of a base made of ultra-high molecular weight polyethylene (UHMWPE) of the Dainem brand or from several layers of polyparaphenylene terephthalamide (polyaramide) fabric of the Kevlar or TSVM-DMS brand, an intermediate layer of fiberglass, titanium or steel, on which ceramic tiles are pasted, coated with ceramic tiles from fabrics of the type Dynema, Kevlar and TSVM-VMS [RU useful mod. No. 51191, M. cl. F41H 1/02, 2006]. The protective properties of the specified DVM armored panel correspond to class 5, "survivability" does not meet the requirements.

Also known is a multilayer armored barrier comprising an organocomposite or aluminum substrate on which silicon carbide plates are placed using epoxy glue and a shell made of TCBM-DMS fabric impregnated with an epoxy binder [RU patent No. 2393416, M. cl. F41H 5/04, 2010]. The armored obstacle has a protection class 6a, but the "survivability" does not meet the requirements.

An armored panel is also known, including a substrate made of pressed UHMWPE Dynam or several layers of Kevlar or TSVM-DMS, ceramic tiles with a corrugated surface in the form of teeth or wavy lines made of silicon carbide, and a shell [RU useful mod. No. 97508, M. cl. F41H 1/02, 2010]. Ceramic tiles contain at least 94% of the mass of silicon carbide. Corrugated surface provides better adhesion to the substrate. The armor panel has a high protection class - 6th. However, the “survivability” of the indicated panel is not high; upon triple impact, neighboring ceramic tiles are destroyed or “crumbled”. In addition, surface corrugation requires the use of additional labor-intensive technological operations.

The closest set of essential features to the claimed one is an armored panel containing a shell made of several layers of Kevlar, Dainem or TSVM-DMS polyaramide fabric, impregnated with an epoxy binder, ceramic tiles and a base of several layers of a composite based on Kevlar or TSVM-DMS impregnated polymer binder [RU useful mod. No. 80935, M. cl. F41H 1/02, 2009]. Ceramic tiles are made of sintered silicon carbide with a content of the main component of at least 88% of the mass. The armored panel meets the 6th class of protection.

With the high advantages of the prototype (lightness combined with a high class of protection), it, like its analogues, does not have a sufficient degree of “survivability”.

The technical result, the achievement of which the claimed utility model is aimed, is to increase the “survivability” - ensuring the stability of the armor barrier with 3 times the impact of damaging means - with protection class 6 and 6a according to GOST R50963-96.

This result is achieved in that the ceramic-containing dynamically high-strength material, comprising a shell of several layers of a polyaramide fabric impregnated with a polymeric binder, ceramic tiles and a base of a composite consisting of several layers of a polyaramide fabric impregnated with a polymeric binder, contains, according to a utility model, ceramic tiles, made with a one-sided coating, applied by detonation in a thickness of 0.5-1.5 mm from corundum, modified with particles of metal alloys on nickel or copper base, with a roughness of R _z = 10 microns.

The coating of modified corundum on the tile is applied on an automatic detonation complex (ADK-Prometey) with heating the sprayed mixture to a melting point of 2000 ° C at a particle speed of 300-400 m / s. The device armored panels from DVM shown in the figure. It includes a shell 1, ceramic tiles 2, an adhesive layer 3 and a base 4.

Ceramic-containing dynamically high-strength material (DVM) works as follows - when exposed to a striking element, the shell 1, designed to trap fragments of ceramic tiles 2, collapses, the ceramic tiles in turn crush the striking element, extinguish its primary energy and are destroyed, while the tiles into which no impact was made on the damaging elements, they do not crumble from the DVM armor panel and do not collapse, the adhesive layer 3 serves to connect ceramic tiles and the base 4, the detonation coating the use on corundum ceramic tiles ensures the “survivability” of the DVM armor panels, the base absorbs the residual energy of the damaging element.

The characteristics of the armored panels were determined during testing of the prototype and the claimed utility model.

Prototype (control example 1).

Layer Thickness 1. Decorative protective layer (shell) 1 mm

epoxy impregnated kevlar fabric

binder

2. Ceramic tiles 50 × 50 of SiC 8 mm

roughness R _z ~ 1 μm

3. Glue layer 0.5 mm 4. The supporting layer (base) of the composite on 7 mm

based on Kevlar fabric impregnated with epoxy binder

Total: 16.5 mm

The claimed armor panel (example 2).

Layer Thickness 1. Decorative protective layer - fabric 1 mm

Kevlar impregnated with polymer

binder

2. Ceramic tiles 50 × 50 of SiC 7 mm

3. Knock coating of

modified corundum Al ₂ O ₃ s

roughness R ₂ 10 μm 1 mm 4. Adhesive layer 0.5 mm 5. The supporting layer (base) of the composite on 7 mm

based on Kevlar fabric soaked

polymer binder

Total: 16.5 mm

Characteristics of armored barriers are presented in table 1. Armored panel Protection class according to GOST R50963-96 "Vitality" * The roughness of the inner side of the ceramic, R _z , MKM Prototype 6 - one Declared armored panel 6 and 6a + 10

* "-" - does not pass the test for "survivability", "+" - passes the test for "survivability".

As can be seen from table 1. the claimed utility model in comparison with the prototype has a higher resistance to weapons - classes 6 and 6a, and the prototype satisfies only the requirements of class 6; the main thing is that the prototype does not satisfy the requirement of survivability, and the claimed utility model satisfies the requirement of survivability.

Claims (1)

Ceramic-containing dynamically high-strength material (DVM), comprising a shell of several layers of a polyaramide fabric impregnated with a polymeric binder, ceramic tiles and a base of a composite consisting of several layers of a polyaramide fabric impregnated with a polymeric binder, characterized in that it contains ceramic tiles having a one-sided coating applied by detonation, with a thickness of 0.5-1.5 mm from corundum, modified with particles of metal alloys on a nickel or copper base, with a roughness R _z = 10 μm.