Nanolith Sverige Ab

Sandvik Intellectual Property Ab

Seco Tools Ab

Magnus Odén

Mats Johansson

Emma Björk

Lars Hultman

Jacob Sjölén

Mats Ahlgren

Lars Johnson

Lina Rogström

Axel Knutsson

Lina ROGSTRÖM

Mats JÖESAAR

Rikard FORSÉN

Björn Alling

A substrate surface comprises at least partially at least one elongated structure, wherein each elongated structure comprises a plurality of channels, said channels extending in the direction of the longitudinal axis of the elongated structure, wherein said at least one elongated structure comprises silicon dioxide. The structures are manufactured by: a) providing a reaction solution comprising a silicate, a micelle forming agent, an alkane, a salt, and at least 1.5 M HCl, having a pH of 2 or lower, b) stirring not more than 10 minutes, c) bringing the reaction solution into contact with a substrate surface and d) treating the obtained material with one method selected from a) heat treating the material above 300&#xb0; C., b) treating the material with at least one selected from HO, and HSO, c) treating the material with microwaves to digest the micelle forming agent.

Manufacture of structures comprising silicon dioxide on a surface

A method for the manufacture of crystallite particles, said method comprising the steps of: a) reacting a reaction solution comprising a silicate, a micelle forming agent, an alkane, a salt under stirring at pH 2 or lower, wherein the reaction solution comprises HCI in a concentration of at least 1.5 M, wherein the stirring is performed not more than 10 minutes, and b) treating the obtained material to remove the micelle forming agent with one method selected from i) heat treating the material above 300&#xb0; C., ii) treating the material with at least one selected from HO, and HSO, iii) treating the material with microwaves to digest the micelle forming agent. An advantage is that the time for the synthesis is shortened considerably compared to the prior art.

Manufacture of crystallite particles

The present invention relates to a cutting tool insert comprising a body of cemented carbide, cermet, ceramics, high speed steel (HSS), polycrystalline diamond (PCD) or polycrystalline cubic boron nitride (PCBN), a hard and wear resistant coating is applied, grown by physical vapour deposition (PVD) such as cathodic arc evaporation or magnetron sputtering. Said coating comprises at least one layer of (ZrAl)N with of 0.45&#x3c;x&#x3c;0.85 and 0.90&#x2266;y&#x3c;1.30 with a thickness between 0.5 and 10 &#x3bc;m. Said layer has a nanocrystalline microstructure consisting of a single cubic phase or a mixture of hexagonal and cubic phases. The insert is particularly useful in metal cutting applications generating high temperatures with improved crater wear resistance.

Coated cutting tool for metal cutting applications generating high temperatures

A cutting tool includes a body of a hard alloy of cemented carbide, cermet, ceramics, cubic boron nitride based material or high speed steel and on which at least one of the functioning parts of the surface thereof, a hard and wear resistant coating is applied. The coating includes a polycrystalline laminar, multilayered structure of metal nitride compounds, in a repetitive form . . . MeN/(TiAl)N/MeN/(TiAl)N/MeN/(TiAl)N/MeN/(TiAl)N . . . of cubic structured (TiAl)N layers where 0.3&#x3c;x&#x3c;0.95 and cubic structured MeN layers where Me is one or more of the metal element Ti, Zr, Hf, V, Nb, Ta, Mo and Al. The laminated structure has a repeat period, &#x3bb;, of 5 nm&#x2266;&#x3bb;&#x3c;20 nm, a layer thickness relation of 1/10&#x3c;(d/d)&#x3c;1/3 and a thickness d&#x2267;1 nm that is essentially constant throughout its total thickness up to 20 &#x3bc;m. The coating hardens as a nanocomposite, adapting its strength during spinodal decomposition of (TiAl)N in cubic TiN and cubic AlN domains where the additional cubic structured MeN layers provides elements for locking a predominantly overall cubic coating structure thus suppressing the hexagonal AlN phase formation leading to improved high temperature metal cutting properties.

Multilayered coated cutting tool

Growing community of inventors

Tullinge, Sweden

Magnus Odén