Replicator fusion bomb in BAMSR

[Edi]

So, we know that fusion only gives out energy from elements lighter that Ferrum and energy is required to fuse elements heavier that ferrum. The neutronium is pretty heavy stuff, so it wont release energy in case of fusion, it would absorb it.
There might be a way the replicator blob reaction to pressure heat and whatever radiation from core of the planet will cause fission, but then it wont be a "repilcator fusion bomb." It would be replicator fission bomb.

Not sure about the exact neutronium properties though...

[thekillman]

you misunderstood. the electrons fused with protons to form neutrons. neutrons can not bond properly unless under supergravity and superpressure, so they would become neutron radiation. because of the sudden loss of space, (an atom is 99.9% empty), there is a sudden vacuum. which destabilizes the core.

[Mister Oragahn]

That's how a rationalized it.
They had increased the blob's effective mass, probably at the expense of great quantities of energy.
In E = 1/2 mv², if they had not added energy, then the blob would have lost its current speed and artificially slowed down.
By doing that, they made the blob so dense that it sunk into the planet, through the rock. The artificial mass here would be tremendous. I mean, mountains don't sink through the crust. The blob did, and that under the natural Earth-like gravity (9.8 m/s²). It may be nice to get a figure about the work (energy) here, based on the force that's necessary to apply to sink through rock over a distance of say, the thickness of the crust at your average slightly above sea level.
The blob's move through the crust would be followed by sudden bursts of magma filling the new fractures and cavities, shifting pressure points. Hence the early quakes.
Then, as the blob would get closer to the planet's core, it would be under extreme temperatures and pressure.
The feature is truly fantastic, but since we're still speaking of machines and not mere atoms, there's still a point they'd break.
Now, what controlled the blob's mass was the blob itself. Every time the blob would take damage, its ability to retain its unusual density would decrease.
This is key. Every section of the blob that would be damaged because of the planet's own pressure and energies would loose its ability to retain its ultra-density and thus violently explode because of the return to a normal density. This would create even more shockwaves through the mantle and the crust.
The blob would then constantly loose (perhaps sacrificing) the external layers, generating shockwave after shockwave, literally blowing the planet's matter outwards.
Past a certain point, the Asuran system (the blob) couldn't handle the pressure, the heat and its own energy it produced to increase its effective mass without loosing speed, and structurally failed, thus regaining the normal mass of the sum of its atoms, and releasing the copious amounts of energy initially produced.
Add to that the possibility that under such heat, natural pressure and insanely artificial pressure, the blob could have actually reached a critical mass, at which point its own matter might have undergone fusion. With at least two million Asurans in that blob, the energy wouldn't come anywhere close to overcome gravitational binding, but it would certainly help for kicking the reaction up.
If you take 2 millions Asurans, each 80 kg heavy (although something tells me they were much heavier than that), you get 160000 tonnes (SI). Now, considering annihilation, and that fusion should be like two orders of magnitude less efficient, you get 68,736,000 megatons of energy there, at least.