BUILD 03 · JOIN

How do these two materials become one vacuum wall?

A joint is where a chamber leaks, and a ceramic-to-metal joint is where it leaks first. This step reads what a document attests about the couple, before any filler is chosen.

What already answers this

Nothing below is a copy. Each line is the surface of this site that carries the answer, and what it carries.

/tools/brazing/routes/ walks every process route the corpus can resolve for a couple
/tools/brazing/ draws the expansion gap a triplet carries on cooldown
/stack/brazing/ holds the three ways to join metal and what each one costs

Not in the base yet

What this step cannot answer, and why. Every count below is read from the corpus at build, so this block shrinks on its own the day the data grows.

unsourced The brazing corpus attests 64 sourced pairings across 26 materials. Every other couple the route engine answers for is DERIVED from the model, and the engine marks which is which rather than blending them.
unsourced 40 filler metals are in the corpus. No weld data, no diffusion bonding data, and no elastomer seal data is carried at all.