Joins having at least partially crystallized glass

A glass that is crystallizable or at least partially crystallized, comprising:

• La2O3 more than 0.3 mol % to less than 5 mol %;
• Nb2O5 0 mol % to 9 mol %;
• Ta2O5 0 mol % to 7 mol %;
• Σ(A2O5) more than 0.2 mol % to 9 mol %,
• where A is an element having an oxidation number V+ in oxides.

A join comprising:

• an electrically insulating component;
• and
• two joining partners secured to one another and electrically insulated from one another by the electrically insulating component,
• wherein the electrically insulating component comprises a surface that extends between the two joining partners, the surface defining a structure selected from a group consisting of an elevation, a depression, and any combinations thereof,
• wherein the electrically insulating component comprises a predominantly amorphous glass layer between the electrically insulating component and the two joining partners,
• wherein the predominantly amorphous glass layer comprises a property selected from a group consisting of:
• less than 10 pores per cm3, a thickness of 5 μm or less, a thickness of 2 μm or less, a thickness of 1 μm or less, and combinations thereof,
• wherein the structure elongates a direct path along the surface,
• wherein the structure completely surrounds at least one of the two joining partners, and
• wherein the electrically insulating component and/or the structure comprises a glass that is at least partially crystallized.

A join comprising:

• an electrically insulating component;
• and
• two joining partners secured to one another and electrically insulated from one another by the electrically insulating component,
• wherein the electrically insulating component comprises a surface that extends between the two joining partners, the surface defining a structure selected from a group consisting of an elevation, a depression, and any combinations thereof,
• wherein the structure elongates a direct path along the surface,
• wherein the structure completely surrounds at least one of the two joining partners, and
• wherein the electrically insulating component and/or the structure comprises a glass that is at least partially crystallized,
• wherein the structure is made of a material that is different from the surface, and wherein the structure is bonded or glass-fused to each of the two joining partners,
• wherein the structure is disposed on the electrically insulating component so as to be centered in a radial direction thereof,
• wherein the structure protrudes into the electrically insulating component.